isRecoilValue(value)

如果 value 是原子或選擇子，則回傳 true，否則回傳 false。

function isRecoilValue(value: mixed): boolean

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範例

import {atom, selector, isRecoilValue} from 'recoil';

const counter = atom({
  key: 'myCounter',
  default: 0,
});

const strCounter = selector({
  key: 'myCounterStr',
  get: ({get}) => String(get(counter)),
});

isRecoilValue(counter); // true
isRecoilValue(strCounter); // true

isRecoilValue(5); // false
isRecoilValue({}); // false