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Bug 2616; Adding object support to jQuery.map

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This commit is contained in:
Jordan Boesch 2011-02-27 12:47:35 -06:00
parent 71bd828d9f
commit c8a887af06
2 changed files with 26 additions and 14 deletions
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28
src/core.js
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@ -712,15 +712,29 @@ jQuery.extend({
// arg is for internal usage only
map: function( elems, callback, arg ) {
var ret = [], value;
var ret = [],
value,
length = elems.length,
// same object detection used in jQuery.each, not full-proof but very speedy.
isObj = length === undefined;
// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0, length = elems.length; i < length; i++ ) {
value = callback( elems[ i ], i, arg );
if ( isObj ) {
for ( key in elems ) {
value = callback( elems[ key ], key, arg );
if ( value != null ) {
ret[ ret.length ] = value;
if ( value != null ) {
ret[ ret.length ] = value;
}
}
} else {
// Go through the array, translating each of the items to their
// new value (or values).
for ( var i = 0; i < length; i++ ) {
value = callback( elems[ i ], i, arg );
if ( value != null ) {
ret[ ret.length ] = value;
}
}
}