Structure of document

Could anyone clarify for me the meaning of (callback[, thisObject]); that is mentioned in the TypeScript documentation here?

I am particularly curious about the brackets themselves [, ].

Answer №1

Let me clarify, the TypeScript documentation can be found here.

Furthermore, TypeScript does not introduce new functions, so for information on function definitions, signatures, parameters, and return types, refer to the JavaScript documentation available here (specifically for .filter())

In general, square brackets around a parameter in documentation indicate it is optional. For example, while you must pass the callback parameter, thisObject is not required.

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