vue hello world项目
You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

15 lines
598 B

'use strict';
var $ = require('../internals/export');
var $map = require('../internals/array-iteration').map;
var arrayMethodHasSpeciesSupport = require('../internals/array-method-has-species-support');
var HAS_SPECIES_SUPPORT = arrayMethodHasSpeciesSupport('map');
// `Array.prototype.map` method
// https://tc39.es/ecma262/#sec-array.prototype.map
// with adding support of @@species
$({ target: 'Array', proto: true, forced: !HAS_SPECIES_SUPPORT }, {
map: function map(callbackfn /* , thisArg */) {
return $map(this, callbackfn, arguments.length > 1 ? arguments[1] : undefined);
}
});