33 lines
931 B
JavaScript
33 lines
931 B
JavaScript
|
'use strict';
|
||
|
var $ = require('../internals/export');
|
||
|
var aFunction = require('../internals/a-function');
|
||
|
var toObject = require('../internals/to-object');
|
||
|
var fails = require('../internals/fails');
|
||
|
var sloppyArrayMethod = require('../internals/sloppy-array-method');
|
||
|
|
||
|
var nativeSort = [].sort;
|
||
|
var test = [1, 2, 3];
|
||
|
|
||
|
// IE8-
|
||
|
var FAILS_ON_UNDEFINED = fails(function () {
|
||
|
test.sort(undefined);
|
||
|
});
|
||
|
// V8 bug
|
||
|
var FAILS_ON_NULL = fails(function () {
|
||
|
test.sort(null);
|
||
|
});
|
||
|
// Old WebKit
|
||
|
var SLOPPY_METHOD = sloppyArrayMethod('sort');
|
||
|
|
||
|
var FORCED = FAILS_ON_UNDEFINED || !FAILS_ON_NULL || SLOPPY_METHOD;
|
||
|
|
||
|
// `Array.prototype.sort` method
|
||
|
// https://tc39.github.io/ecma262/#sec-array.prototype.sort
|
||
|
$({ target: 'Array', proto: true, forced: FORCED }, {
|
||
|
sort: function sort(comparefn) {
|
||
|
return comparefn === undefined
|
||
|
? nativeSort.call(toObject(this))
|
||
|
: nativeSort.call(toObject(this), aFunction(comparefn));
|
||
|
}
|
||
|
});
|