mirror of https://github.com/tc39/test262.git
20 lines
528 B
JavaScript
20 lines
528 B
JavaScript
// Copyright 2020 Salesforce.com, Inc. All rights reserved.
|
|
// This code is governed by the BSD license found in the LICENSE file.
|
|
/*---
|
|
esid: prod-OptionalExpression
|
|
description: >
|
|
Productions for ?. Arguments
|
|
info: |
|
|
OptionalChain[Yield, Await]:
|
|
?. Arguments
|
|
features: [optional-chaining]
|
|
---*/
|
|
|
|
function fn(arg1, arg2, arg3 = 0) {
|
|
return arg1 + arg2 + arg3;
|
|
}
|
|
|
|
assert.sameValue(fn?.(10, 20), 30, 'regular');
|
|
assert.sameValue(String?.(42), '42', 'built-in');
|
|
assert.sameValue(fn ?. (...[10, 20, 40]), 70, 'spread');
|