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2026/5/22 -You can use optional chaining when attempting to call a method which may not exist. This can be helpful, for example, when using an API in which ...
2022/6/17 -You only need to modify the target option in your TypeScript configuration and set it to anything ES2019 or below. Then you can use optional ...
The Optional Chaining ( ?. ) Operator returns undefined if an object is undefined or null. (Instead of throwing an error). Example.
2019/8/27 -Optional chaining enables readable and concise expression of property accesses with built-in nullish checking.
2024/7/17 -So it's better to not use optional chaining if the nullish values are not expected by letting the code to fail fast in order to quickly discover ...
2024/2/13 -Optional chaining, introduced in ECMAScript 2020, is a feature that simplifies the process of accessing properties and methods of nested objects ...
Use JavaScript optional chaining (?.) to safely read nested properties, arrays, and callbacks without crashes, with practical examples.
2021/8/2 -TypeScript 3.7 added support for the ?. operator, also known as the optional chaining operator. We can use optional chaining to descend into an ...
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2022/11/25 -Optional chaining is a new way to access properties of objects without having to check if the object is undefined or not. It is a very useful ...