Types for destructed function arguments in TypeScript?

Question

I can define types for destructured function arguments in TypeScript:

import { state, myAction } from "store/types";

type Args = {
  state: state;
  action: myAction;
};

const move = ({ state, action }: Args) => {

However can you specify the types inline? So something like:

const move = ({ state: state, actionL: actionMoveExerciseUp }) => {

Terry · Accepted Answer · 2020-03-10 10:08:50Z

1

Then you will need to do this:

const move = ({ state, action }: { state: state, action: myAction }) => {
    // More logic here
}

This is because your original code is actually simply reassigning the value to another variable. ({ state: state, action: actionMoveExerciseUp }) means that the value of action will be accessible as actionmoveExercuseUp inside the scope of the arrow function instead of action.

answered Mar 10, 2020 at 10:08

Terry

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