Function useEffect

packages/react-reconciler/src/ReactFiberHooks.js:4027–4035

(
      create: () => (() => void) | void,
      deps: Array<mixed> | void | null,
    )

      return readContext(context);
    },
    useEffect(
      create: () => (() => void) | void,
      deps: Array<mixed> | void | null,
    ): void {
      currentHookNameInDev = 'useEffect';
      mountHookTypesDev();
      checkDepsAreArrayDev(deps);
      return mountEffect(create, deps);
    },
    useImperativeHandle<T>(
      ref: {current: T | null} | ((inst: T | null) => mixed) | null | void,
      create: () => T,