2 // 22.1.3.13 Array.prototype.join(separator)
3 var $export = require('./_export')
4 , toIObject = require('./_to-iobject')
7 // fallback for not array-like strings
8 $export($export.P + $export.F * (require('./_iobject') != Object || !require('./_strict-method')(arrayJoin)), 'Array', {
9 join: function join(separator){
10 return arrayJoin.call(toIObject(this), separator === undefined ? ',' : separator);