1 // 21.1.3.6 String.prototype.endsWith(searchString [, endPosition])
3 var $export = require('./_export')
4 , toLength = require('./_to-length')
5 , context = require('./_string-context')
6 , ENDS_WITH = 'endsWith'
7 , $endsWith = ''[ENDS_WITH];
9 $export($export.P + $export.F * require('./_fails-is-regexp')(ENDS_WITH), 'String', {
10 endsWith: function endsWith(searchString /*, endPosition = @length */){
11 var that = context(this, searchString, ENDS_WITH)
12 , endPosition = arguments.length > 1 ? arguments[1] : undefined
13 , len = toLength(that.length)
14 , end = endPosition === undefined ? len : Math.min(toLength(endPosition), len)
15 , search = String(searchString);
17 ? $endsWith.call(that, search, end)
18 : that.slice(end - search.length, end) === search;