jquery
Version:
JavaScript library for DOM operations
29 lines (21 loc) • 660 B
JavaScript
define( [
"../var/document",
"../var/support"
], function( document, support ) {
( function() {
var i, eventName,
div = document.createElement( "div" );
// Support: IE<9 (lack submit/change bubble), Firefox (lack focus(in | out) events)
for ( i in { submit: true, change: true, focusin: true } ) {
eventName = "on" + i;
if ( !( support[ i ] = eventName in window ) ) {
// Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)
div.setAttribute( eventName, "t" );
support[ i ] = div.attributes[ eventName ].expando === false;
}
}
// Null elements to avoid leaks in IE.
div = null;
} )();
return support;
} );