1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
|
// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-for-in-and-for-of-statements
es6id: 13.7.5
description: >
The token sequence `let [`is interpreted as the beginning of a destructuring
binding pattern
info: |
Syntax
IterationStatement[Yield, Return]:
for ( [lookahead ≠ let]LeftHandSideExpression[?Yield] of
AssignmentExpression[+In, ?Yield] ) Statement[?Yield, ?Return]
for ( ForDeclaration[?Yield] of AssignmentExpression[+In, ?Yield] )
Statement[?Yield, ?Return]
---*/
var value;
for ( let[x] of [[34]] ) {
value = x;
}
assert.sameValue(typeof x, 'undefined', 'binding is block-scoped');
assert.sameValue(value, 34);
|
