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826 Browser and Screen Sizes
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914 <li class=
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915 <a href=
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916 elCreate(tagName: string): Element
921 <li class=
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922 <a href=
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923 elRemove(element: Element)
928 <li class=
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929 <a href=
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930 elShow(element: Element)
935 <li class=
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936 <a href=
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937 elHide(element: Element)
942 <li class=
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943 <a href=
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944 elToggle(element: Element)
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964 elAttr(element: Element, attribute: string, value?: string): string
969 <li class=
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970 <a href=
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971 elAttrBool(element: Element, attribute: string): boolean
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977 <a href=
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978 elData(element: Element, attribute: string, value?: string): string
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984 <a href=
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985 elDataBool(element: Element, attribute: string): boolean
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996 <a href=
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1000 <nav class=
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1003 <li class=
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1004 <a href=
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1005 elById(id: string): Element | null
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1011 <a href=
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1012 elBySel(selector: string, context?: Element): Element | null
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1018 <a href=
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1019 elBySelAll(selector: string, context?: Element, callback: (element: Element) =
> void): NodeList
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1025 <li class=
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1026 <a href=
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1027 Callback to Iterate Over Elements
1037 <li class=
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1038 <a href=
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"md-nav__link">
1039 elClosest(element: Element, selector: string): Element | null
1042 <nav class=
"md-nav" aria-label=
"elClosest(element: Element, selector: string): Element | null">
1043 <ul class=
"md-nav__list">
1045 <li class=
"md-nav__item">
1046 <a href=
"#text-nodes" class=
"md-nav__link">
1057 <li class=
"md-nav__item">
1058 <a href=
"#elbyclassclassname-string-context-element-nodelist" class=
"md-nav__link">
1059 elByClass(className: string, context?: Element): NodeList
1064 <li class=
"md-nav__item">
1065 <a href=
"#elbytagtagname-string-context-element-nodelist" class=
"md-nav__link">
1066 elByTag(tagName: string, context?: Element): NodeList
1076 <li class=
"md-nav__item">
1077 <a href=
"#utility-functions" class=
"md-nav__link">
1081 <nav class=
"md-nav" aria-label=
"Utility Functions">
1082 <ul class=
"md-nav__list">
1084 <li class=
"md-nav__item">
1085 <a href=
"#elinnererrorelement-element-errormessage-string-ishtml-boolean-element-null" class=
"md-nav__link">
1086 `elInnerError(element: Element, errorMessage?: string, isHtml?: boolean): Element | null``
1096 <li class=
"md-nav__item">
1097 <a href=
"#string-extensions" class=
"md-nav__link">
1101 <nav class=
"md-nav" aria-label=
"String Extensions">
1102 <ul class=
"md-nav__list">
1104 <li class=
"md-nav__item">
1105 <a href=
"#hashcode-string" class=
"md-nav__link">
1128 <li class=
"md-nav__item">
1129 <a href=
"../code-snippets/" class=
"md-nav__link">
1150 <li class=
"md-nav__item md-nav__item--nested">
1153 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_5" type=
"checkbox" id=
"__nav_5" >
1155 <label class=
"md-nav__link" for=
"__nav_5">
1157 <span class=
"md-nav__icon md-icon"></span>
1159 <nav class=
"md-nav" aria-label=
"Package Components" data-md-level=
"1">
1160 <label class=
"md-nav__title" for=
"__nav_5">
1161 <span class=
"md-nav__icon md-icon"></span>
1164 <ul class=
"md-nav__list" data-md-scrollfix
>
1170 <li class=
"md-nav__item">
1171 <a href=
"../../package/package-xml/" class=
"md-nav__link">
1183 <li class=
"md-nav__item md-nav__item--nested">
1186 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_5_2" type=
"checkbox" id=
"__nav_5_2" >
1188 <label class=
"md-nav__link" for=
"__nav_5_2">
1190 <span class=
"md-nav__icon md-icon"></span>
1192 <nav class=
"md-nav" aria-label=
"PIPs" data-md-level=
"2">
1193 <label class=
"md-nav__title" for=
"__nav_5_2">
1194 <span class=
"md-nav__icon md-icon"></span>
1197 <ul class=
"md-nav__list" data-md-scrollfix
>
1203 <li class=
"md-nav__item">
1204 <a href=
"../../package/pip/" class=
"md-nav__link">
1215 <li class=
"md-nav__item">
1216 <a href=
"../../package/pip/acl-option/" class=
"md-nav__link">
1227 <li class=
"md-nav__item">
1228 <a href=
"../../package/pip/acp-menu/" class=
"md-nav__link">
1239 <li class=
"md-nav__item">
1240 <a href=
"../../package/pip/acp-search-provider/" class=
"md-nav__link">
1251 <li class=
"md-nav__item">
1252 <a href=
"../../package/pip/acp-template/" class=
"md-nav__link">
1263 <li class=
"md-nav__item">
1264 <a href=
"../../package/pip/bbcode/" class=
"md-nav__link">
1275 <li class=
"md-nav__item">
1276 <a href=
"../../package/pip/box/" class=
"md-nav__link">
1287 <li class=
"md-nav__item">
1288 <a href=
"../../package/pip/clipboard-action/" class=
"md-nav__link">
1299 <li class=
"md-nav__item">
1300 <a href=
"../../package/pip/core-object/" class=
"md-nav__link">
1311 <li class=
"md-nav__item">
1312 <a href=
"../../package/pip/cronjob/" class=
"md-nav__link">
1323 <li class=
"md-nav__item">
1324 <a href=
"../../package/pip/database/" class=
"md-nav__link">
1335 <li class=
"md-nav__item">
1336 <a href=
"../../package/pip/event-listener/" class=
"md-nav__link">
1347 <li class=
"md-nav__item">
1348 <a href=
"../../package/pip/file/" class=
"md-nav__link">
1359 <li class=
"md-nav__item">
1360 <a href=
"../../package/pip/language/" class=
"md-nav__link">
1371 <li class=
"md-nav__item">
1372 <a href=
"../../package/pip/media-provider/" class=
"md-nav__link">
1383 <li class=
"md-nav__item">
1384 <a href=
"../../package/pip/menu/" class=
"md-nav__link">
1395 <li class=
"md-nav__item">
1396 <a href=
"../../package/pip/menu-item/" class=
"md-nav__link">
1407 <li class=
"md-nav__item">
1408 <a href=
"../../package/pip/object-type/" class=
"md-nav__link">
1419 <li class=
"md-nav__item">
1420 <a href=
"../../package/pip/object-type-definition/" class=
"md-nav__link">
1421 objectTypeDefinition
1431 <li class=
"md-nav__item">
1432 <a href=
"../../package/pip/option/" class=
"md-nav__link">
1443 <li class=
"md-nav__item">
1444 <a href=
"../../package/pip/page/" class=
"md-nav__link">
1455 <li class=
"md-nav__item">
1456 <a href=
"../../package/pip/pip/" class=
"md-nav__link">
1467 <li class=
"md-nav__item">
1468 <a href=
"../../package/pip/script/" class=
"md-nav__link">
1479 <li class=
"md-nav__item">
1480 <a href=
"../../package/pip/smiley/" class=
"md-nav__link">
1491 <li class=
"md-nav__item">
1492 <a href=
"../../package/pip/sql/" class=
"md-nav__link">
1503 <li class=
"md-nav__item">
1504 <a href=
"../../package/pip/style/" class=
"md-nav__link">
1515 <li class=
"md-nav__item">
1516 <a href=
"../../package/pip/template/" class=
"md-nav__link">
1527 <li class=
"md-nav__item">
1528 <a href=
"../../package/pip/template-listener/" class=
"md-nav__link">
1539 <li class=
"md-nav__item">
1540 <a href=
"../../package/pip/user-group-option/" class=
"md-nav__link">
1551 <li class=
"md-nav__item">
1552 <a href=
"../../package/pip/user-menu/" class=
"md-nav__link">
1563 <li class=
"md-nav__item">
1564 <a href=
"../../package/pip/user-notification-event/" class=
"md-nav__link">
1565 userNotificationEvent
1575 <li class=
"md-nav__item">
1576 <a href=
"../../package/pip/user-option/" class=
"md-nav__link">
1587 <li class=
"md-nav__item">
1588 <a href=
"../../package/pip/user-profile-menu/" class=
"md-nav__link">
1605 <li class=
"md-nav__item">
1606 <a href=
"../../package/database-php-api/" class=
"md-nav__link">
1627 <li class=
"md-nav__item md-nav__item--nested">
1630 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6" type=
"checkbox" id=
"__nav_6" >
1632 <label class=
"md-nav__link" for=
"__nav_6">
1634 <span class=
"md-nav__icon md-icon"></span>
1636 <nav class=
"md-nav" aria-label=
"Migration" data-md-level=
"1">
1637 <label class=
"md-nav__title" for=
"__nav_6">
1638 <span class=
"md-nav__icon md-icon"></span>
1641 <ul class=
"md-nav__list" data-md-scrollfix
>
1648 <li class=
"md-nav__item md-nav__item--nested">
1651 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6_1" type=
"checkbox" id=
"__nav_6_1" >
1653 <label class=
"md-nav__link" for=
"__nav_6_1">
1654 Migrating from WSC
5.3
1655 <span class=
"md-nav__icon md-icon"></span>
1657 <nav class=
"md-nav" aria-label=
"Migrating from WSC 5.3" data-md-level=
"2">
1658 <label class=
"md-nav__title" for=
"__nav_6_1">
1659 <span class=
"md-nav__icon md-icon"></span>
1660 Migrating from WSC
5.3
1662 <ul class=
"md-nav__list" data-md-scrollfix
>
1668 <li class=
"md-nav__item">
1669 <a href=
"../../migration/wsc53/php/" class=
"md-nav__link">
1680 <li class=
"md-nav__item">
1681 <a href=
"../../migration/wsc53/session/" class=
"md-nav__link">
1682 Session Handling and Authentication
1692 <li class=
"md-nav__item">
1693 <a href=
"../../migration/wsc53/javascript/" class=
"md-nav__link">
1694 TypeScript and JavaScript
1704 <li class=
"md-nav__item">
1705 <a href=
"../../migration/wsc53/templates/" class=
"md-nav__link">
1716 <li class=
"md-nav__item">
1717 <a href=
"../../migration/wsc53/libraries/" class=
"md-nav__link">
1718 Third Party Libraries
1735 <li class=
"md-nav__item md-nav__item--nested">
1738 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6_2" type=
"checkbox" id=
"__nav_6_2" >
1740 <label class=
"md-nav__link" for=
"__nav_6_2">
1741 Migrating from WSC
5.2
1742 <span class=
"md-nav__icon md-icon"></span>
1744 <nav class=
"md-nav" aria-label=
"Migrating from WSC 5.2" data-md-level=
"2">
1745 <label class=
"md-nav__title" for=
"__nav_6_2">
1746 <span class=
"md-nav__icon md-icon"></span>
1747 Migrating from WSC
5.2
1749 <ul class=
"md-nav__list" data-md-scrollfix
>
1755 <li class=
"md-nav__item">
1756 <a href=
"../../migration/wsc52/php/" class=
"md-nav__link">
1767 <li class=
"md-nav__item">
1768 <a href=
"../../migration/wsc52/templates/" class=
"md-nav__link">
1769 Templates and Languages
1779 <li class=
"md-nav__item">
1780 <a href=
"../../migration/wsc52/libraries/" class=
"md-nav__link">
1781 Third Party Libraries
1798 <li class=
"md-nav__item md-nav__item--nested">
1801 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6_3" type=
"checkbox" id=
"__nav_6_3" >
1803 <label class=
"md-nav__link" for=
"__nav_6_3">
1804 Migrating from WSC
3.1
1805 <span class=
"md-nav__icon md-icon"></span>
1807 <nav class=
"md-nav" aria-label=
"Migrating from WSC 3.1" data-md-level=
"2">
1808 <label class=
"md-nav__title" for=
"__nav_6_3">
1809 <span class=
"md-nav__icon md-icon"></span>
1810 Migrating from WSC
3.1
1812 <ul class=
"md-nav__list" data-md-scrollfix
>
1818 <li class=
"md-nav__item">
1819 <a href=
"../../migration/wsc31/php/" class=
"md-nav__link">
1837 <li class=
"md-nav__item md-nav__item--nested">
1840 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6_4" type=
"checkbox" id=
"__nav_6_4" >
1842 <label class=
"md-nav__link" for=
"__nav_6_4">
1843 Migrating from WSC
3.0
1844 <span class=
"md-nav__icon md-icon"></span>
1846 <nav class=
"md-nav" aria-label=
"Migrating from WSC 3.0" data-md-level=
"2">
1847 <label class=
"md-nav__title" for=
"__nav_6_4">
1848 <span class=
"md-nav__icon md-icon"></span>
1849 Migrating from WSC
3.0
1851 <ul class=
"md-nav__list" data-md-scrollfix
>
1857 <li class=
"md-nav__item">
1858 <a href=
"../../migration/wsc30/php/" class=
"md-nav__link">
1869 <li class=
"md-nav__item">
1870 <a href=
"../../migration/wsc30/javascript/" class=
"md-nav__link">
1881 <li class=
"md-nav__item">
1882 <a href=
"../../migration/wsc30/templates/" class=
"md-nav__link">
1893 <li class=
"md-nav__item">
1894 <a href=
"../../migration/wsc30/css/" class=
"md-nav__link">
1905 <li class=
"md-nav__item">
1906 <a href=
"../../migration/wsc30/package/" class=
"md-nav__link">
1924 <li class=
"md-nav__item md-nav__item--nested">
1927 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_6_5" type=
"checkbox" id=
"__nav_6_5" >
1929 <label class=
"md-nav__link" for=
"__nav_6_5">
1930 Migrating from WCF
2.1
1931 <span class=
"md-nav__icon md-icon"></span>
1933 <nav class=
"md-nav" aria-label=
"Migrating from WCF 2.1" data-md-level=
"2">
1934 <label class=
"md-nav__title" for=
"__nav_6_5">
1935 <span class=
"md-nav__icon md-icon"></span>
1936 Migrating from WCF
2.1
1938 <ul class=
"md-nav__list" data-md-scrollfix
>
1944 <li class=
"md-nav__item">
1945 <a href=
"../../migration/wcf21/php/" class=
"md-nav__link">
1956 <li class=
"md-nav__item">
1957 <a href=
"../../migration/wcf21/templates/" class=
"md-nav__link">
1968 <li class=
"md-nav__item">
1969 <a href=
"../../migration/wcf21/css/" class=
"md-nav__link">
1980 <li class=
"md-nav__item">
1981 <a href=
"../../migration/wcf21/package/" class=
"md-nav__link">
2008 <li class=
"md-nav__item md-nav__item--nested">
2011 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_7" type=
"checkbox" id=
"__nav_7" >
2013 <label class=
"md-nav__link" for=
"__nav_7">
2015 <span class=
"md-nav__icon md-icon"></span>
2017 <nav class=
"md-nav" aria-label=
"Tutorials" data-md-level=
"1">
2018 <label class=
"md-nav__title" for=
"__nav_7">
2019 <span class=
"md-nav__icon md-icon"></span>
2022 <ul class=
"md-nav__list" data-md-scrollfix
>
2029 <li class=
"md-nav__item md-nav__item--nested">
2032 <input class=
"md-nav__toggle md-toggle" data-md-toggle=
"__nav_7_1" type=
"checkbox" id=
"__nav_7_1" >
2034 <label class=
"md-nav__link" for=
"__nav_7_1">
2036 <span class=
"md-nav__icon md-icon"></span>
2038 <nav class=
"md-nav" aria-label=
"Tutorial Series" data-md-level=
"2">
2039 <label class=
"md-nav__title" for=
"__nav_7_1">
2040 <span class=
"md-nav__icon md-icon"></span>
2043 <ul class=
"md-nav__list" data-md-scrollfix
>
2049 <li class=
"md-nav__item">
2050 <a href=
"../../tutorial/series/overview/" class=
"md-nav__link">
2061 <li class=
"md-nav__item">
2062 <a href=
"../../tutorial/series/part_1/" class=
"md-nav__link">
2073 <li class=
"md-nav__item">
2074 <a href=
"../../tutorial/series/part_2/" class=
"md-nav__link">
2085 <li class=
"md-nav__item">
2086 <a href=
"../../tutorial/series/part_3/" class=
"md-nav__link">
2097 <li class=
"md-nav__item">
2098 <a href=
"../../tutorial/series/part_4/" class=
"md-nav__link">
2109 <li class=
"md-nav__item">
2110 <a href=
"../../tutorial/series/part_5/" class=
"md-nav__link">
2137 <div class=
"md-sidebar md-sidebar--secondary" data-md-component=
"sidebar" data-md-type=
"toc" >
2138 <div class=
"md-sidebar__scrollwrap">
2139 <div class=
"md-sidebar__inner">
2141 <nav class=
"md-nav md-nav--secondary" aria-label=
"Table of contents">
2148 <label class=
"md-nav__title" for=
"__toc">
2149 <span class=
"md-nav__icon md-icon"></span>
2152 <ul class=
"md-nav__list" data-md-component=
"toc" data-md-scrollfix
>
2154 <li class=
"md-nav__item">
2155 <a href=
"#introduction" class=
"md-nav__link">
2161 <li class=
"md-nav__item">
2162 <a href=
"#elements" class=
"md-nav__link">
2166 <nav class=
"md-nav" aria-label=
"Elements">
2167 <ul class=
"md-nav__list">
2169 <li class=
"md-nav__item">
2170 <a href=
"#elcreatetagname-string-element" class=
"md-nav__link">
2171 elCreate(tagName: string): Element
2176 <li class=
"md-nav__item">
2177 <a href=
"#elremoveelement-element" class=
"md-nav__link">
2178 elRemove(element: Element)
2183 <li class=
"md-nav__item">
2184 <a href=
"#elshowelement-element" class=
"md-nav__link">
2185 elShow(element: Element)
2190 <li class=
"md-nav__item">
2191 <a href=
"#elhideelement-element" class=
"md-nav__link">
2192 elHide(element: Element)
2197 <li class=
"md-nav__item">
2198 <a href=
"#eltoggleelement-element" class=
"md-nav__link">
2199 elToggle(element: Element)
2209 <li class=
"md-nav__item">
2210 <a href=
"#attributes" class=
"md-nav__link">
2214 <nav class=
"md-nav" aria-label=
"Attributes">
2215 <ul class=
"md-nav__list">
2217 <li class=
"md-nav__item">
2218 <a href=
"#elattrelement-element-attribute-string-value-string-string" class=
"md-nav__link">
2219 elAttr(element: Element, attribute: string, value?: string): string
2224 <li class=
"md-nav__item">
2225 <a href=
"#elattrboolelement-element-attribute-string-boolean" class=
"md-nav__link">
2226 elAttrBool(element: Element, attribute: string): boolean
2231 <li class=
"md-nav__item">
2232 <a href=
"#eldataelement-element-attribute-string-value-string-string" class=
"md-nav__link">
2233 elData(element: Element, attribute: string, value?: string): string
2238 <li class=
"md-nav__item">
2239 <a href=
"#eldataboolelement-element-attribute-string-boolean" class=
"md-nav__link">
2240 elDataBool(element: Element, attribute: string): boolean
2250 <li class=
"md-nav__item">
2251 <a href=
"#selecting-elements" class=
"md-nav__link">
2255 <nav class=
"md-nav" aria-label=
"Selecting Elements">
2256 <ul class=
"md-nav__list">
2258 <li class=
"md-nav__item">
2259 <a href=
"#elbyidid-string-element-null" class=
"md-nav__link">
2260 elById(id: string): Element | null
2265 <li class=
"md-nav__item">
2266 <a href=
"#elbyselselector-string-context-element-element-null" class=
"md-nav__link">
2267 elBySel(selector: string, context?: Element): Element | null
2272 <li class=
"md-nav__item">
2273 <a href=
"#elbyselallselector-string-context-element-callback-element-element-void-nodelist" class=
"md-nav__link">
2274 elBySelAll(selector: string, context?: Element, callback: (element: Element) =
> void): NodeList
2277 <nav class=
"md-nav" aria-label=
"elBySelAll(selector: string, context?: Element, callback: (element: Element) => void): NodeList">
2278 <ul class=
"md-nav__list">
2280 <li class=
"md-nav__item">
2281 <a href=
"#callback-to-iterate-over-elements" class=
"md-nav__link">
2282 Callback to Iterate Over Elements
2292 <li class=
"md-nav__item">
2293 <a href=
"#elclosestelement-element-selector-string-element-null" class=
"md-nav__link">
2294 elClosest(element: Element, selector: string): Element | null
2297 <nav class=
"md-nav" aria-label=
"elClosest(element: Element, selector: string): Element | null">
2298 <ul class=
"md-nav__list">
2300 <li class=
"md-nav__item">
2301 <a href=
"#text-nodes" class=
"md-nav__link">
2312 <li class=
"md-nav__item">
2313 <a href=
"#elbyclassclassname-string-context-element-nodelist" class=
"md-nav__link">
2314 elByClass(className: string, context?: Element): NodeList
2319 <li class=
"md-nav__item">
2320 <a href=
"#elbytagtagname-string-context-element-nodelist" class=
"md-nav__link">
2321 elByTag(tagName: string, context?: Element): NodeList
2331 <li class=
"md-nav__item">
2332 <a href=
"#utility-functions" class=
"md-nav__link">
2336 <nav class=
"md-nav" aria-label=
"Utility Functions">
2337 <ul class=
"md-nav__list">
2339 <li class=
"md-nav__item">
2340 <a href=
"#elinnererrorelement-element-errormessage-string-ishtml-boolean-element-null" class=
"md-nav__link">
2341 `elInnerError(element: Element, errorMessage?: string, isHtml?: boolean): Element | null``
2351 <li class=
"md-nav__item">
2352 <a href=
"#string-extensions" class=
"md-nav__link">
2356 <nav class=
"md-nav" aria-label=
"String Extensions">
2357 <ul class=
"md-nav__list">
2359 <li class=
"md-nav__item">
2360 <a href=
"#hashcode-string" class=
"md-nav__link">
2379 <div class=
"md-content" data-md-component=
"content">
2380 <article class=
"md-content__inner md-typeset">
2383 <a href=
"https://github.com/WoltLab/docs.woltlab.com/edit/5.4/docs/javascript/helper-functions.md" title=
"Edit this page" class=
"md-content__button md-icon">
2384 <svg xmlns=
"http://www.w3.org/2000/svg" viewBox=
"0 0 24 24"><path d=
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2388 <h1 id=
"javascript-helper-functions">JavaScript Helper Functions
<a class=
"headerlink" href=
"#javascript-helper-functions" title=
"Permanent link">#
</a></h1>
2389 <h2 id=
"introduction">Introduction
<a class=
"headerlink" href=
"#introduction" title=
"Permanent link">#
</a></h2>
2390 <p>Since version
3.0, WoltLab Suite ships with a set of global helper functions that are
2391 exposed on the
<code>window
</code>-object and thus are available regardless of the context.
2392 They are meant to reduce code repetition and to increase readability by moving
2393 potentially relevant parts to the front of an instruction.
</p>
2394 <h2 id=
"elements">Elements
<a class=
"headerlink" href=
"#elements" title=
"Permanent link">#
</a></h2>
2395 <h3 id=
"elcreatetagname-string-element"><code>elCreate(tagName: string): Element
</code><a class=
"headerlink" href=
"#elcreatetagname-string-element" title=
"Permanent link">#
</a></h3>
2396 <p>Creates a new element with the provided tag name.
</p>
2397 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2398 <span class=
"normal">2</span>
2399 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">elCreate
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">);
</span>
2400 <span class=
"c1">// equals
</span>
2401 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">createElement
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">);
</span>
2404 <h3 id=
"elremoveelement-element"><code>elRemove(element: Element)
</code><a class=
"headerlink" href=
"#elremoveelement-element" title=
"Permanent link">#
</a></h3>
2405 <p>Removes an element from its parent without returning it. This function will throw
2406 an error if the
<code>element
</code> doesn't have a parent node.
</p>
2407 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2408 <span class=
"normal">2</span>
2409 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"nx">elRemove
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">);
</span>
2410 <span class=
"c1">// equals
</span>
2411 <span class=
"nx">element
</span><span class=
"p">.
</span><span class=
"nx">parentNode
</span><span class=
"p">.
</span><span class=
"nx">removeChild
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">);
</span>
2414 <h3 id=
"elshowelement-element"><code>elShow(element: Element)
</code><a class=
"headerlink" href=
"#elshowelement-element" title=
"Permanent link">#
</a></h3>
2415 <p>Attempts to show an element by removing the
<code>display
</code> CSS-property, usually used
2416 in conjunction with the
<code>elHide()
</code> function.
</p>
2417 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2418 <span class=
"normal">2</span>
2419 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"nx">elShow
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">);
</span>
2420 <span class=
"c1">// equals
</span>
2421 <span class=
"nx">element
</span><span class=
"p">.
</span><span class=
"nx">style
</span><span class=
"p">.
</span><span class=
"nx">removeProperty
</span><span class=
"p">(
</span><span class=
"s2">"display
"</span><span class=
"p">);
</span>
2424 <h3 id=
"elhideelement-element"><code>elHide(element: Element)
</code><a class=
"headerlink" href=
"#elhideelement-element" title=
"Permanent link">#
</a></h3>
2425 <p>Attempts to hide an element by setting the
<code>display
</code> CSS-property to
<code>none
</code>, this
2426 is intended to be used with
<code>elShow()
</code> that relies on this behavior.
</p>
2427 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2428 <span class=
"normal">2</span>
2429 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"nx">elHide
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">);
</span>
2430 <span class=
"c1">// equals
</span>
2431 <span class=
"nx">element
</span><span class=
"p">.
</span><span class=
"nx">style
</span><span class=
"p">.
</span><span class=
"nx">setProperty
</span><span class=
"p">(
</span><span class=
"s2">"display
"</span><span class=
"p">,
</span> <span class=
"s2">"none
"</span><span class=
"p">,
</span> <span class=
"s2">""</span><span class=
"p">);
</span>
2434 <h3 id=
"eltoggleelement-element"><code>elToggle(element: Element)
</code><a class=
"headerlink" href=
"#eltoggleelement-element" title=
"Permanent link">#
</a></h3>
2435 <p>Attempts to toggle the visibility of an element by examining the value of the
2436 <code>display
</code> CSS-property and calls either
<code>elShow()
</code> or
<code>elHide()
</code>.
</p>
2437 <h2 id=
"attributes">Attributes
<a class=
"headerlink" href=
"#attributes" title=
"Permanent link">#
</a></h2>
2438 <h3 id=
"elattrelement-element-attribute-string-value-string-string"><code>elAttr(element: Element, attribute: string, value?: string): string
</code><a class=
"headerlink" href=
"#elattrelement-element-attribute-string-value-string-string" title=
"Permanent link">#
</a></h3>
2439 <p>Sets or reads an attribute value, value are implicitly casted into strings and
2440 reading non-existing attributes will always yield an empty string. If you want
2441 to test for attribute existence, you'll have to fall-back to the native
2442 <a href=
"https://developer.mozilla.org/en-US/docs/Web/API/Element/hasAttribute"><code>Element.hasAttribute()
</code></a>
2444 <p>You should read and set native attributes directly, such as
<code>img.src
</code> rather
2445 than
<code>img.getAttribute(
"src");
</code>.
</p>
2446 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2447 <span class=
"normal">2</span>
2448 <span class=
"normal">3</span>
2449 <span class=
"normal">4</span>
2450 <span class=
"normal">5</span>
2451 <span class=
"normal">6</span>
2452 <span class=
"normal">7</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">value
</span> <span class=
"o">=
</span> <span class=
"nx">elAttr
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">);
</span>
2453 <span class=
"c1">// equals
</span>
2454 <span class=
"kd">var
</span> <span class=
"nx">value
</span> <span class=
"o">=
</span> <span class=
"nx">element
</span><span class=
"p">.
</span><span class=
"nx">getAttribute
</span><span class=
"p">(
</span><span class=
"s2">"some-attribute
"</span><span class=
"p">);
</span>
2456 <span class=
"nx">elAttr
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">,
</span> <span class=
"s2">"some value
"</span><span class=
"p">);
</span>
2457 <span class=
"c1">// equals
</span>
2458 <span class=
"nx">element
</span><span class=
"p">.
</span><span class=
"nx">setAttribute
</span><span class=
"p">(
</span><span class=
"s2">"some-attribute
"</span><span class=
"p">,
</span> <span class=
"s2">"some value
"</span><span class=
"p">);
</span>
2461 <h3 id=
"elattrboolelement-element-attribute-string-boolean"><code>elAttrBool(element: Element, attribute: string): boolean
</code><a class=
"headerlink" href=
"#elattrboolelement-element-attribute-string-boolean" title=
"Permanent link">#
</a></h3>
2462 <p>Reads an attribute and converts it value into a boolean value, the strings
<code>"1"</code>
2463 and
<code>"true"</code> will evaluate to
<code>true
</code>. All other values, including a missing attribute,
2464 will return
<code>false
</code>.
</p>
2465 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2466 <span class=
"normal">2</span>
2467 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"k">if
</span> <span class=
"p">(
</span><span class=
"nx">elAttrBool
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">))
</span> <span class=
"p">{
</span>
2468 <span class=
"c1">// attribute is true-ish
</span>
2469 <span class=
"p">}
</span>
2472 <h3 id=
"eldataelement-element-attribute-string-value-string-string"><code>elData(element: Element, attribute: string, value?: string): string
</code><a class=
"headerlink" href=
"#eldataelement-element-attribute-string-value-string-string" title=
"Permanent link">#
</a></h3>
2473 <p>Short-hand function to read or set HTML5
<code>data-*
</code>-attributes, it essentially
2474 prepends the
<code>data-
</code> prefix before forwarding the call to
<code>elAttr()
</code>.
</p>
2475 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2476 <span class=
"normal">2</span>
2477 <span class=
"normal">3</span>
2478 <span class=
"normal">4</span>
2479 <span class=
"normal">5</span>
2480 <span class=
"normal">6</span>
2481 <span class=
"normal">7</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">value
</span> <span class=
"o">=
</span> <span class=
"nx">elData
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">);
</span>
2482 <span class=
"c1">// equals
</span>
2483 <span class=
"kd">var
</span> <span class=
"nx">value
</span> <span class=
"o">=
</span> <span class=
"nx">elAttr
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"data-some-attribute
"</span><span class=
"p">);
</span>
2485 <span class=
"nx">elData
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">,
</span> <span class=
"s2">"some value
"</span><span class=
"p">);
</span>
2486 <span class=
"c1">// equals
</span>
2487 <span class=
"nx">elAttr
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"data-some-attribute
"</span><span class=
"p">,
</span> <span class=
"s2">"some value
"</span><span class=
"p">);
</span>
2490 <h3 id=
"eldataboolelement-element-attribute-string-boolean"><code>elDataBool(element: Element, attribute: string): boolean
</code><a class=
"headerlink" href=
"#eldataboolelement-element-attribute-string-boolean" title=
"Permanent link">#
</a></h3>
2491 <p>Short-hand function to convert a HTML5
<code>data-*
</code>-attribute into a boolean value. It
2492 prepends the
<code>data-
</code> prefix before forwarding the call to
<code>elAttrBool()
</code>.
</p>
2493 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2494 <span class=
"normal">2</span>
2495 <span class=
"normal">3</span>
2496 <span class=
"normal">4</span>
2497 <span class=
"normal">5</span>
2498 <span class=
"normal">6</span>
2499 <span class=
"normal">7</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"k">if
</span> <span class=
"p">(
</span><span class=
"nx">elDataBool
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"some-attribute
"</span><span class=
"p">))
</span> <span class=
"p">{
</span>
2500 <span class=
"c1">// attribute is true-ish
</span>
2501 <span class=
"p">}
</span>
2502 <span class=
"c1">// equals
</span>
2503 <span class=
"k">if
</span> <span class=
"p">(
</span><span class=
"nx">elAttrBool
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">,
</span> <span class=
"s2">"data-some-attribute
"</span><span class=
"p">))
</span> <span class=
"p">{
</span>
2504 <span class=
"c1">// attribute is true-ish
</span>
2505 <span class=
"p">}
</span>
2508 <h2 id=
"selecting-elements">Selecting Elements
<a class=
"headerlink" href=
"#selecting-elements" title=
"Permanent link">#
</a></h2>
2509 <div class=
"admonition warning">
2510 <p class=
"admonition-title">Unlike libraries like jQuery, these functions will return
<code>null
</code> if an element is not found. You are responsible to validate if the element exist and to branch accordingly, invoking methods on the return value without checking for
<code>null
</code> will yield an error.
</p>
2512 <h3 id=
"elbyidid-string-element-null"><code>elById(id: string): Element | null
</code><a class=
"headerlink" href=
"#elbyidid-string-element-null" title=
"Permanent link">#
</a></h3>
2513 <p>Selects an element by its
<code>id
</code>-attribute value.
</p>
2514 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2515 <span class=
"normal">2</span>
2516 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">elById
</span><span class=
"p">(
</span><span class=
"s2">"my-awesome-element
"</span><span class=
"p">);
</span>
2517 <span class=
"c1">// equals
</span>
2518 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">getElementById
</span><span class=
"p">(
</span><span class=
"s2">"my-awesome-element
"</span><span class=
"p">);
</span>
2521 <h3 id=
"elbyselselector-string-context-element-element-null"><code>elBySel(selector: string, context?: Element): Element | null
</code><a class=
"headerlink" href=
"#elbyselselector-string-context-element-element-null" title=
"Permanent link">#
</a></h3>
2522 <div class=
"admonition danger">
2523 <p class=
"admonition-title">The underlying
<code>querySelector()
</code>-method works on the entire DOM hierarchy and can yield results outside of your context element! Please read and understand the MDN article on
<a href=
"https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelector#The_entire_hierarchy_counts"><code>Element.querySelector()
</code></a> to learn more about this.
</p>
2525 <p>Select a single element based on a CSS selector, optionally limiting the results
2526 to be a direct or indirect children of the context element.
</p>
2527 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2528 <span class=
"normal">2</span>
2529 <span class=
"normal">3</span>
2530 <span class=
"normal">4</span>
2531 <span class=
"normal">5</span>
2532 <span class=
"normal">6</span>
2533 <span class=
"normal">7</span>
2534 <span class=
"normal">8</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">elBySel
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2535 <span class=
"c1">// equals
</span>
2536 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">querySelector
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2538 <span class=
"c1">// limiting the scope to a context element:
</span>
2539 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">elBySel
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">,
</span> <span class=
"nx">context
</span><span class=
"p">);
</span>
2540 <span class=
"c1">// equals
</span>
2541 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">context
</span><span class=
"p">.
</span><span class=
"nx">querySelector
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2544 <h3 id=
"elbyselallselector-string-context-element-callback-element-element-void-nodelist"><code>elBySelAll(selector: string, context?: Element, callback: (element: Element) =
> void): NodeList
</code><a class=
"headerlink" href=
"#elbyselallselector-string-context-element-callback-element-element-void-nodelist" title=
"Permanent link">#
</a></h3>
2545 <div class=
"admonition danger">
2546 <p class=
"admonition-title">The underlying
<code>querySelector()
</code>-method works on the entire DOM hierarchy and can yield results outside of your context element! Please read and understand the MDN article on
<a href=
"https://developer.mozilla.org/en-US/docs/Web/API/Element/querySelector#The_entire_hierarchy_counts"><code>Element.querySelector()
</code></a> to learn more about this.
</p>
2548 <p>Finds and returns a
<code>NodeList
</code> containing all elements that match the provided
2549 CSS selector. Although
<code>NodeList
</code> is an array-like structure, it is not possible
2550 to iterate over it using array functions, including
<code>.forEach()
</code> which is not
2551 available in Internet Explorer
11.
</p>
2552 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2553 <span class=
"normal">2</span>
2554 <span class=
"normal">3</span>
2555 <span class=
"normal">4</span>
2556 <span class=
"normal">5</span>
2557 <span class=
"normal">6</span>
2558 <span class=
"normal">7</span>
2559 <span class=
"normal">8</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elBySelAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2560 <span class=
"c1">// equals
</span>
2561 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">querySelectorAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2563 <span class=
"c1">// limiting the scope to a context element:
</span>
2564 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elBySelAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">,
</span> <span class=
"nx">context
</span><span class=
"p">);
</span>
2565 <span class=
"c1">// equals
</span>
2566 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">context
</span><span class=
"p">.
</span><span class=
"nx">querySelectorAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2569 <h4 id=
"callback-to-iterate-over-elements">Callback to Iterate Over Elements
<a class=
"headerlink" href=
"#callback-to-iterate-over-elements" title=
"Permanent link">#
</a></h4>
2570 <p><code>elBySelAll()
</code> supports an optional third parameter that expects a callback function
2571 that is invoked for every element in the list.
</p>
2572 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2573 <span class=
"normal">2</span>
2574 <span class=
"normal">3</span>
2575 <span class=
"normal">4</span>
2576 <span class=
"normal">5</span>
2577 <span class=
"normal">6</span>
2578 <span class=
"normal">7</span>
2579 <span class=
"normal">8</span>
2580 <span class=
"normal">9</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"c1">// set the
2nd parameter to `undefined` or `null` to query the whole document
</span>
2581 <span class=
"nx">elBySelAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">,
</span> <span class=
"kc">undefined
</span><span class=
"p">,
</span> <span class=
"kd">function
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">)
</span> <span class=
"p">{
</span>
2582 <span class=
"c1">// is called for each element
</span>
2583 <span class=
"p">});
</span>
2585 <span class=
"c1">// limiting the scope to a context element:
</span>
2586 <span class=
"nx">elBySelAll
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">,
</span> <span class=
"nx">context
</span><span class=
"p">,
</span> <span class=
"kd">function
</span><span class=
"p">(
</span><span class=
"nx">element
</span><span class=
"p">)
</span> <span class=
"p">{
</span>
2587 <span class=
"c1">// is called for each element
</span>
2588 <span class=
"p">});
</span>
2591 <h3 id=
"elclosestelement-element-selector-string-element-null"><code>elClosest(element: Element, selector: string): Element | null
</code><a class=
"headerlink" href=
"#elclosestelement-element-selector-string-element-null" title=
"Permanent link">#
</a></h3>
2592 <p>Returns the first
<code>Element
</code> that matches the provided CSS selector, this will
2593 return the provided element itself if it matches the selector.
</p>
2594 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2595 <span class=
"normal">2</span>
2596 <span class=
"normal">3</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">elClosest
</span><span class=
"p">(
</span><span class=
"nx">context
</span><span class=
"p">,
</span> <span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2597 <span class=
"c1">// equals
</span>
2598 <span class=
"kd">var
</span> <span class=
"nx">element
</span> <span class=
"o">=
</span> <span class=
"nx">context
</span><span class=
"p">.
</span><span class=
"nx">closest
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2601 <h4 id=
"text-nodes">Text Nodes
<a class=
"headerlink" href=
"#text-nodes" title=
"Permanent link">#
</a></h4>
2602 <p>If the provided context is a
<code>Text
</code>-node, the function will move the context to
2603 the parent element before applying the CSS selector. If the
<code>Text
</code> has no parent,
2604 <code>null
</code> is returned without evaluating the selector.
</p>
2605 <h3 id=
"elbyclassclassname-string-context-element-nodelist"><code>elByClass(className: string, context?: Element): NodeList
</code><a class=
"headerlink" href=
"#elbyclassclassname-string-context-element-nodelist" title=
"Permanent link">#
</a></h3>
2606 <p>Returns a live
<code>NodeList
</code> containing all elements that match the provided CSS
2607 class now
<em>and
</em> in the future! The collection is automatically updated whenever
2608 an element with that class is added or removed from the DOM, it will also include
2609 elements that get dynamically assigned or removed this CSS class.
</p>
2610 <p>You absolutely need to understand that this collection is dynamic, that means that
2611 elements can and will be added and removed from the collection
<em>even while
</em> you
2612 iterate over it. There are only very few cases where you would need such a collection,
2613 almost always
<code>elBySelAll()
</code> is what you're looking for.
</p>
2614 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2615 <span class=
"normal">2</span>
2616 <span class=
"normal">3</span>
2617 <span class=
"normal">4</span>
2618 <span class=
"normal">5</span>
2619 <span class=
"normal">6</span>
2620 <span class=
"normal">7</span>
2621 <span class=
"normal">8</span>
2622 <span class=
"normal">9</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"c1">// no leading dot!
</span>
2623 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elByClass
</span><span class=
"p">(
</span><span class=
"s2">"some-element
"</span><span class=
"p">);
</span>
2624 <span class=
"c1">// equals
</span>
2625 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">getElementsByClassName
</span><span class=
"p">(
</span><span class=
"s2">"some-element
"</span><span class=
"p">);
</span>
2627 <span class=
"c1">// limiting the scope to a context element:
</span>
2628 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elByClass
</span><span class=
"p">(
</span><span class=
"s2">"some-element
"</span><span class=
"p">,
</span> <span class=
"nx">context
</span><span class=
"p">);
</span>
2629 <span class=
"c1">// equals
</span>
2630 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">context
</span><span class=
"p">.
</span><span class=
"nx">getElementsByClassName
</span><span class=
"p">(
</span><span class=
"s2">".some-element
"</span><span class=
"p">);
</span>
2633 <h3 id=
"elbytagtagname-string-context-element-nodelist"><code>elByTag(tagName: string, context?: Element): NodeList
</code><a class=
"headerlink" href=
"#elbytagtagname-string-context-element-nodelist" title=
"Permanent link">#
</a></h3>
2634 <p>Returns a live
<code>NodeList
</code> containing all elements with the provided tag name now
2635 <em>and
</em> in the future! Please read the remarks on
<code>elByClass()
</code> above to understand
2636 the implications of this.
</p>
2637 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2638 <span class=
"normal">2</span>
2639 <span class=
"normal">3</span>
2640 <span class=
"normal">4</span>
2641 <span class=
"normal">5</span>
2642 <span class=
"normal">6</span>
2643 <span class=
"normal">7</span>
2644 <span class=
"normal">8</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elByTag
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">);
</span>
2645 <span class=
"c1">// equals
</span>
2646 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nb">document
</span><span class=
"p">.
</span><span class=
"nx">getElementsByTagName
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">);
</span>
2648 <span class=
"c1">// limiting the scope to a context element:
</span>
2649 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">elByTag
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">,
</span> <span class=
"nx">context
</span><span class=
"p">);
</span>
2650 <span class=
"c1">// equals
</span>
2651 <span class=
"kd">var
</span> <span class=
"nx">elements
</span> <span class=
"o">=
</span> <span class=
"nx">context
</span><span class=
"p">.
</span><span class=
"nx">getElementsByTagName
</span><span class=
"p">(
</span><span class=
"s2">"div
"</span><span class=
"p">);
</span>
2654 <h2 id=
"utility-functions">Utility Functions
<a class=
"headerlink" href=
"#utility-functions" title=
"Permanent link">#
</a></h2>
2655 <h3 id=
"elinnererrorelement-element-errormessage-string-ishtml-boolean-element-null">`elInnerError(element: Element, errorMessage?: string, isHtml?: boolean): Element | null``
<a class=
"headerlink" href=
"#elinnererrorelement-element-errormessage-string-ishtml-boolean-element-null" title=
"Permanent link">#
</a></h3>
2656 <p>Unified function to display and remove inline error messages for input elements,
2657 please read the
<a href=
"../../migration/wsc30/javascript/#helper-function-for-inline-error-messages">section in the migration docs
</a>
2658 to learn more about this function.
</p>
2659 <h2 id=
"string-extensions">String Extensions
<a class=
"headerlink" href=
"#string-extensions" title=
"Permanent link">#
</a></h2>
2660 <h3 id=
"hashcode-string"><code>hashCode(): string
</code><a class=
"headerlink" href=
"#hashcode-string" title=
"Permanent link">#
</a></h3>
2661 <p>Computes a numeric hash value of a string similar to Java's
<code>String.hashCode()
</code> method.
</p>
2662 <table class=
"highlighttable"><tr><td class=
"linenos"><div class=
"linenodiv"><pre><span></span><span class=
"normal">1</span>
2663 <span class=
"normal">2</span></pre></div></td><td class=
"code"><div class=
"highlight"><pre><span></span><code><span class=
"nx">console
</span><span class=
"p">.
</span><span class=
"nx">log
</span><span class=
"p">(
</span><span class=
"s2">"Hello World
"</span><span class=
"p">.
</span><span class=
"nx">hashCode
</span><span class=
"p">());
</span>
2664 <span class=
"c1">// outputs: -
862545276</span>
2672 <div class=
"md-source-date">
2675 Last update:
2021-
01-
08
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