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21 lines
480 B
JavaScript
21 lines
480 B
JavaScript
// Copyright 2019 Google, Inc. All rights reserved.
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// This code is governed by the BSD license found in the LICENSE file.
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/*---
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esid: prod-OptionalExpression
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description: >
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optional chain on call expression
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info: |
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Left-Hand-Side Expressions
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OptionalExpression:
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CallExpression OptionalChain
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features: [optional-chaining]
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---*/
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function fn () {
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return {a: 33};
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};
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// CallExpression Arguments
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assert.sameValue(33, fn()?.a);
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assert.sameValue(undefined, fn()?.b);
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