Wednesday, 6 November, 2019 UTC


TypeScript 3.7, the latest version of Microsoft’s typed superset of JavaScript, is now generally available. The new production release features optional chaining, an ECMAScript feature that allows developers to stop running expressions if they encounter a null or undefined value. 
Optional chaining uses a new ?. operator for optional property accesses. Also included are two other operations: optional element access, for accessing non-identifier properties such as numbers and arbitrary strings, and optional call, for conditionally calling expressions if they are not null or undefined.
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