Source code
Revision control
Copy as Markdown
Other Tools
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
description: Expression is allowed in head
info: |
IterationStatement : for ( ForDeclaration in Expression ) Statement
1. Let keyResult be the result of performing
ForIn/OfHeadEvaluation(BoundNames of ForDeclaration, Expression,
enumerate).
2. ReturnIfAbrupt(keyResult).
3. Return ForIn/OfBodyEvaluation(ForDeclaration, Statement, keyResult,
lexicalBinding, labelSet).
es6id: 13.7.5.11
---*/
var iterCount = 0;
var x;
for (x in null, { key: 0 }) {
assert.sameValue(x, 'key');
iterCount += 1;
}
assert.sameValue(iterCount, 1);
reportCompare(0, 0);