| // 21.1.3.6 String.prototype.endsWith(searchString [, endPosition]) |
| 'use strict'; |
| var $export = require('./_export'); |
| var toLength = require('./_to-length'); |
| var context = require('./_string-context'); |
| var ENDS_WITH = 'endsWith'; |
| var $endsWith = ''[ENDS_WITH]; |
| |
| $export($export.P + $export.F * require('./_fails-is-regexp')(ENDS_WITH), 'String', { |
| endsWith: function endsWith(searchString /* , endPosition = @length */) { |
| var that = context(this, searchString, ENDS_WITH); |
| var endPosition = arguments.length > 1 ? arguments[1] : undefined; |
| var len = toLength(that.length); |
| var end = endPosition === undefined ? len : Math.min(toLength(endPosition), len); |
| var search = String(searchString); |
| return $endsWith |
| ? $endsWith.call(that, search, end) |
| : that.slice(end - search.length, end) === search; |
| } |
| }); |