TypeScript
TypeScript warns that the object is possibly null
error TS2531: Object is possibly 'null'.
TypeScript found code that uses a value as a non-null object even though strict null checking still allows that value to be null.
Error AtlasError Documentation and ResolutionObserved message
error TS2531: Object is possibly 'null'.
Why it happens
- A value can be null under strict null checks.
- Control flow has not narrowed the value before use.
- A DOM query, lookup, or API result can return null and is being used directly.
How to fix it
- Add a null check before reading properties or calling methods on the value.
- Use control-flow narrowing so TypeScript can prove the value is non-null.
- Only use non-null assertions when you are certain the value cannot actually be null at runtime.
Official reference
TypeScript TSConfig: strictNullChecksRelated errors
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