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