| 1234567891011121314151617181920 |
- // Copyright 2019 Google, Inc. All rights reserved.
- // This code is governed by the BSD license found in the LICENSE file.
- /*---
- esid: prod-OptionalExpression
- description: >
- optional chain bracket notation containing optional expresion
- info: |
- OptionalChain:
- ?. [OptionalExpression]
- features: [optional-chaining]
- ---*/
- const a = undefined;
- const b = {e: 0};
- const c = {};
- c[undefined] = 11;
- const d = [22];
- assert.sameValue(undefined, a?.[a?.b]);
- assert.sameValue(11, c?.[a?.b]);
- assert.sameValue(22, d?.[b?.e]);
|
