ESlint: Require explicit return types on exported functions, yes or no?? - Theo's Typesafe Cult

Theo's Typesafe Cult•3y ago•

32 replies

ESlint: Require explicit return types on exported functions, yes or no??

Per Theo's video I'll post below and the well articulated logic within, it's best to avoid using explicit return types whenever possible.

I just jumped in on a codebase that has eslint rules that yell at me when I don't explicitly type the return type of function's that are exported ie

export function foo()

export function foo()

and

export default function

export default function

. Should I (suggest we) disable this and let the return types be inferred as Theo suggested of functions in the below video? Specifically I am asking about this eslint rule: https://github.com/typescript-eslint/typescript-eslint/blob/v4.33.0/packages/eslint-plugin/docs/rules/explicit-module-boundary-types.md

https://www.youtube.com/watch?v=I6V2FkW1ozQ&t=495s