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- 'use strict';
- var $ = require('../internals/export');
- var uncurryThis = require('../internals/function-uncurry-this');
- var notARegExp = require('../internals/not-a-regexp');
- var requireObjectCoercible = require('../internals/require-object-coercible');
- var toString = require('../internals/to-string');
- var correctIsRegExpLogic = require('../internals/correct-is-regexp-logic');
- var stringIndexOf = uncurryThis(''.indexOf);
- // `String.prototype.includes` method
- // https://tc39.es/ecma262/#sec-string.prototype.includes
- $({ target: 'String', proto: true, forced: !correctIsRegExpLogic('includes') }, {
- includes: function includes(searchString /* , position = 0 */) {
- return !!~stringIndexOf(
- toString(requireObjectCoercible(this)),
- toString(notARegExp(searchString)),
- arguments.length > 1 ? arguments[1] : undefined
- );
- }
- });
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