v8/test/webkit/const-without-initializer.js

// Copyright 2013 the V8 project authors. All rights reserved.
// Copyright (C) 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reserved.
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// Flags: --legacy-const

description(
'Tests that declaring a const variable without initializing has the correct behavior and does not crash'
);

const f;

shouldBe('f', 'undefined');

f = 10;

shouldBe('f', 'undefined');