src/arguments/args-trailing-comma-undefined.case


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// Copyright (C) 2017 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
desc: A trailing comma after undefined should not increase the arguments.length
template: default
esid: prod-Arguments
info: |
    Trailing comma in the arguments list

    12.3 Left-Hand-Side Expressions

    Arguments[Yield, Await] : ( ArgumentList[?Yield, ?Await] , )
---*/

//- args
42, undefined,
//- body
assert.sameValue(arguments.length, 2);
assert.sameValue(arguments[0], 42);
assert.sameValue(arguments[1], undefined);