Web Reference: TypeScript has a powerful system to deal with null or undefined values. By default null and undefined handling is disabled, and can be enabled by setting strictNullChecks to true. The rest of this page applies for when strictNullChecks is enabled. By the end of this tutorial, you'll understand how to safely handle nullable types in TypeScript, ensuring your code is more resilient and reliable. Sep 17, 2025 · In summary, for handling null in TypeScript, always prefer explicit checks or the optional chaining (?.) and nullish coalescing (??) operators for safety. Reserve the non-null assertion operator (!) for situations where you have a strong guarantee that a value will not be null.
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