mirror of https://github.com/lukechilds/node.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
23 lines
805 B
23 lines
805 B
8 years ago
|
// Copyright 2016 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.
|
||
|
|
|
||
|
|
// lastIndex is set only for global or sticky RegExps. On failure to find
|
||
|
|
// a match, it is set to 0. If a set fails, then it acts as if in strict mode
|
||
|
|
// and throws.
|
||
|
|
|
||
|
|
var re = /x/g;
|
||
|
|
Object.defineProperty(re, 'lastIndex', {writable: false});
|
||
|
|
assertThrows(() => re.exec(""), TypeError);
|
||
|
|
assertThrows(() => re.exec("x"), TypeError);
|
||
|
|
|
||
|
|
var re = /x/y;
|
||
|
|
Object.defineProperty(re, 'lastIndex', {writable: false});
|
||
|
|
assertThrows(() => re.exec(""), TypeError);
|
||
|
|
assertThrows(() => re.exec("x"), TypeError);
|
||
|
|
|
||
|
|
var re = /x/;
|
||
|
|
Object.defineProperty(re, 'lastIndex', {writable: false});
|
||
|
|
assertEquals(null, re.exec(""));
|
||
|
|
assertEquals(["x"], re.exec("x"));
|