mirror of https://github.com/tc39/test262.git
16 lines
452 B
JavaScript
16 lines
452 B
JavaScript
// Copyright (C) 2016 the V8 project authors. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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description: The head's declaration may not contain duplicate entries
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negative:
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phase: early
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type: SyntaxError
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info: |
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It is a Syntax Error if the BoundNames of ForDeclaration contains any
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duplicate entries.
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esid: sec-for-in-and-for-of-statements
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es6id: 13.7.5
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---*/
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for (const [x, x] in {}) {}
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