performance of useShallow and create-with-equality-fn

[arvinxx]

Hi, I'm a big fan of zustand and use a lot in my project. I'm wondering a small question about performance of two different usage:

useShallow:

// store.ts
import { create } from 'zustand'

export const useStore = create(store)

// App.tsx

const value = useStore(useShallow(state => ({ a: state.a, b: state.b,array: state.array })));

create-with-equality-fn and shallow/deep equal

// store.ts
import { shallow } from 'zustand/shallow';
import { createWithEqualityFn } from 'zustand/traditional';


export const useStore = createWithEqualityFn(store, shallow)

// App.tsx

import isEqual from 'fast-deep-equal';


const value = useStore(state => ({ a: state.a, b: state.b,array: state.array }),isEqual);

which one has better performance?

[dbritto-dev]

@arvinxx you need to run the benchmarks