react useeffect not on first render

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Antonio
19 Jan 2019
1//This is a way to build this effect as a custom hook
2import React, { useEffect, useRef } from 'react';
3
4const useDidMountEffect = (func, deps) => {
5    const didMount = useRef(false);
6
7    useEffect(() => {
8        if (didMount.current) func();
9        else didMount.current = true;
10    }, deps);
11}
12
13export default useDidMountEffect;
source
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