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- // 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 on recursive optional expression
- info: |
- Left-Hand-Side Expressions
- OptionalExpression:
- OptionalExpression OptionalChain
- features: [optional-chaining]
- ---*/
- const obj = {
- a: {
- b: 22
- }
- };
- function fn () {
- return {};
- }
- // OptionalExpression (MemberExpression OptionalChain) OptionalChain
- assert.sameValue(22, obj?.a?.b);
- // OptionalExpression (CallExpression OptionalChain) OptionalChain
- assert.sameValue(undefined, fn()?.a?.b);
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