React.useCallback：我是否需要将依赖项数组中的函数与依赖项一起传递？

Question

React docs example shows only [a, b] as dependencies. Function doSomething is not passed.

const memoizedCallback = useCallback(
  () => {
    doSomething(a, b);
  },
  [a, b],
);

But later docs reads:

every value referenced inside the callback should also appear in the dependencies array.

My question: do I need to pass doSomething as well?

const memoizedCallback = useCallback(
  () => {
    doSomething(a, b);
  },
  [a, b, doSomething],
);

Answer 1

Technically it's not required if it doesn't change, but it can bring unexpected behavior, so just for simplicity you need to pass all things you used inside if it's declared in component or comes from props. Also if you are using eslint, there is awesome plugin for hooks which is de-facto standard