// Copyright 2015 the V8 project authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. var pattern = { [Symbol.replace]: (string, newValue) => string + newValue }; // Check object coercible fails. assertThrows(() => String.prototype.replace.call(null, pattern, "x"), TypeError); // Override is called. assertEquals("abcdex", "abcde".replace(pattern, "x")); // Non-callable override. pattern[Symbol.replace] = "dumdidum"; assertThrows(() => "abcde".replace(pattern, "x"), TypeError); assertEquals("[Symbol.replace]", RegExp.prototype[Symbol.replace].name);