diff options
Diffstat (limited to 'ui/widgets/accordion.js')
| -rw-r--r-- | ui/widgets/accordion.js | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/ui/widgets/accordion.js b/ui/widgets/accordion.js index b6a7a7eee..ff6e4631d 100644 --- a/ui/widgets/accordion.js +++ b/ui/widgets/accordion.js @@ -52,7 +52,17 @@ return $.widget( "ui.accordion", { collapsible: false, event: "click", header: function( elem ) { - return elem.find( "> li > :first-child" ).add( elem.find( "> :not(li)" ).even() ); + return elem + .find( "> li > :first-child" ) + .add( + elem.find( "> :not(li)" ) + + // Support: jQuery <3.5 only + // We could use `.even()` but that's unavailable in older jQuery. + .filter( function( i ) { + return i % 2 === 0; + } ) + ); }, heightStyle: "auto", icons: { |