Is Typescript capable of identifying void functions automatically?

Being new to Typescript and programming in general.

Instead of using:

function greet(greeting: string): void;

Can I simplify it like this? Is there any type inference?

function greet(greeting: string);

Answer №1

Generally speaking, TypeScript is able to accurately determine the return type of a function in 95% of situations. However, there are some exceptions such as when dealing with "tuples", which may be inferred incorrectly as arrays, or when working with anonymous objects that already have a specified type.

In most cases, it is unnecessary to explicitly define the return type as void, unless you want to enhance clarity.

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