source: trip-planner-front/node_modules/core-js/modules/es.string.starts-with.js

Last change on this file was 6a3a178, checked in by Ema <ema_spirova@…>, 3 years ago

initial commit

  • Property mode set to 100644
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1'use strict';
2var $ = require('../internals/export');
3var getOwnPropertyDescriptor = require('../internals/object-get-own-property-descriptor').f;
4var toLength = require('../internals/to-length');
5var toString = require('../internals/to-string');
6var notARegExp = require('../internals/not-a-regexp');
7var requireObjectCoercible = require('../internals/require-object-coercible');
8var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');
9var IS_PURE = require('../internals/is-pure');
10
11// eslint-disable-next-line es/no-string-prototype-startswith -- safe
12var $startsWith = ''.startsWith;
13var min = Math.min;
14
15var CORRECT_IS_REGEXP_LOGIC = correctIsRegExpLogic('startsWith');
16// https://github.com/zloirock/core-js/pull/702
17var MDN_POLYFILL_BUG = !IS_PURE && !CORRECT_IS_REGEXP_LOGIC && !!function () {
18 var descriptor = getOwnPropertyDescriptor(String.prototype, 'startsWith');
19 return descriptor && !descriptor.writable;
20}();
21
22// `String.prototype.startsWith` method
23// https://tc39.es/ecma262/#sec-string.prototype.startswith
24$({ target: 'String', proto: true, forced: !MDN_POLYFILL_BUG && !CORRECT_IS_REGEXP_LOGIC }, {
25 startsWith: function startsWith(searchString /* , position = 0 */) {
26 var that = toString(requireObjectCoercible(this));
27 notARegExp(searchString);
28 var index = toLength(min(arguments.length > 1 ? arguments[1] : undefined, that.length));
29 var search = toString(searchString);
30 return $startsWith
31 ? $startsWith.call(that, search, index)
32 : that.slice(index, index + search.length) === search;
33 }
34});
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