26 lines
1.1 KiB
JavaScript
26 lines
1.1 KiB
JavaScript
|
'use strict';
|
||
|
|
var $ = require('../internals/export');
|
||
|
|
var toLength = require('../internals/to-length');
|
||
|
|
var notARegExp = require('../internals/not-a-regexp');
|
||
|
|
var requireObjectCoercible = require('../internals/require-object-coercible');
|
||
|
|
var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');
|
||
|
|
|
||
|
|
var nativeEndsWith = ''.endsWith;
|
||
|
|
var min = Math.min;
|
||
|
|
|
||
|
|
// `String.prototype.endsWith` method
|
||
|
|
// https://tc39.github.io/ecma262/#sec-string.prototype.endswith
|
||
|
|
$({ target: 'String', proto: true, forced: !correctIsRegExpLogic('endsWith') }, {
|
||
|
|
endsWith: function endsWith(searchString /* , endPosition = @length */) {
|
||
|
|
var that = String(requireObjectCoercible(this));
|
||
|
|
notARegExp(searchString);
|
||
|
|
var endPosition = arguments.length > 1 ? arguments[1] : undefined;
|
||
|
|
var len = toLength(that.length);
|
||
|
|
var end = endPosition === undefined ? len : min(toLength(endPosition), len);
|
||
|
|
var search = String(searchString);
|
||
|
|
return nativeEndsWith
|
||
|
|
? nativeEndsWith.call(that, search, end)
|
||
|
|
: that.slice(end - search.length, end) === search;
|
||
|
|
}
|
||
|
|
});
|