Why is my TypeScript type not inferred correctly in generic functions?
TypeScript may not infer the correct type in generic functions if there’s insufficient context. Provide explicit type arguments when inference fails.
In TypeScript, generic functions allow you to write reusable code by deferring the type definition until the function is called. However, TypeScript can’t always infer the correct type, especially if the context is ambiguous or if the function’s parameters don’t provide enough information. In these cases, you’ll need to explicitly specify the type arguments when calling the function. For example, instead of relying on TypeScript to infer the type in a call like identity(value)
, you can use identity<string>(value)
to explicitly tell the compiler the type you expect. This helps avoid issues where TypeScript incorrectly infers any
or other less specific types.