'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 !!~String(requireObjectCoercible(this))
- .indexOf(notARegExp(searchString), arguments.length > 1 ? arguments[1] : undefined);
+ return !!~stringIndexOf(
+ toString(requireObjectCoercible(this)),
+ toString(notARegExp(searchString)),
+ arguments.length > 1 ? arguments[1] : undefined
+ );
}
});