1 // Copyright 2015 the V8 project authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 var pattern = { 6 [Symbol.replace]: (string, newValue) => string + newValue 7 }; 8 // Check object coercible fails. 9 assertThrows(() => String.prototype.replace.call(null, pattern, "x"), 10 TypeError); 11 // Override is called. 12 assertEquals("abcdex", "abcde".replace(pattern, "x")); 13 // Non-callable override. 14 pattern[Symbol.replace] = "dumdidum"; 15 assertThrows(() => "abcde".replace(pattern, "x"), TypeError); 16 17 assertEquals("[Symbol.replace]", RegExp.prototype[Symbol.replace].name); 18
