// Copyright 2019 Google, Inc. All rights reserved. | |
// This code is governed by the BSD license found in the LICENSE file. | |
/*--- | |
esid: prod-OptionalExpression | |
description: > | |
an optional expression cannot be target of assignment | |
info: | | |
Static Semantics: IsValidSimpleAssignmentTarget | |
LeftHandSideExpression: | |
OptionalExpression | |
Return false. | |
features: [optional-chaining] | |
negative: | |
phase: parse | |
type: SyntaxError | |
---*/ | |
$DONOTEVALUATE(); | |
const obj = {}; | |
obj?.a = 33; |