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Optional chaining and nullish coalescing in TypeScript

Blog post from LogRocket

Post Details
Company
Date Published
Author
Matteo Di Pirro
Word Count
1,501
Company Posts That Month
87
Language
-
Hacker News Points
-
Post removed?
No
Summary

Optional chaining and nullish coalescing are two features introduced in TypeScript 3.7 to simplify handling of null or undefined values, enhancing code readability and reducing verbosity compared to TypeScript 3.6. Optional chaining, via the ?. operator, allows expressions to stop executing if a part evaluates to null or undefined, thus avoiding explicit checks and making code concise. It can be used for optional property access, optional calls, and optional element access. Nullish coalescing, using the ?? operator, provides a default value when the primary expression is null or undefined, further simplifying conditional logic. These features, when used together, help developers write cleaner code and are best utilized with TypeScript's strictNullChecks enabled to ensure more robust and error-free code.

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