File size: 1,218 Bytes
1e92f2d
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
import { DependencyList, EffectCallback, useEffect, useRef } from 'react';

const isPrimitive = (val: any) => val !== Object(val);

type DepsEqualFnType<TDeps extends DependencyList> = (prevDeps: TDeps, nextDeps: TDeps) => boolean;

const useCustomCompareEffect = <TDeps extends DependencyList>(
  effect: EffectCallback,
  deps: TDeps,
  depsEqual: DepsEqualFnType<TDeps>
) => {
  if (process.env.NODE_ENV !== 'production') {
    if (!(deps instanceof Array) || !deps.length) {
      console.warn(
        '`useCustomCompareEffect` should not be used with no dependencies. Use React.useEffect instead.'
      );
    }

    if (deps.every(isPrimitive)) {
      console.warn(
        '`useCustomCompareEffect` should not be used with dependencies that are all primitive values. Use React.useEffect instead.'
      );
    }

    if (typeof depsEqual !== 'function') {
      console.warn(
        '`useCustomCompareEffect` should be used with depsEqual callback for comparing deps list'
      );
    }
  }

  const ref = useRef<TDeps | undefined>(undefined);

  if (!ref.current || !depsEqual(deps, ref.current)) {
    ref.current = deps;
  }

  useEffect(effect, ref.current);
};

export default useCustomCompareEffect;