es6.reflect.enumerate.js
735 Bytes
'use strict';
// 26.1.5 Reflect.enumerate(target)
var $export = require('./$.export')
, anObject = require('./$.an-object');
var Enumerate = function(iterated){
this._t = anObject(iterated); // target
this._i = 0; // next index
var keys = this._k = [] // keys
, key;
for(key in iterated)keys.push(key);
};
require('./$.iter-create')(Enumerate, 'Object', function(){
var that = this
, keys = that._k
, key;
do {
if(that._i >= keys.length)return {value: undefined, done: true};
} while(!((key = keys[that._i++]) in that._t));
return {value: key, done: false};
});
$export($export.S, 'Reflect', {
enumerate: function enumerate(target){
return new Enumerate(target);
}
});