constuseStateWithLocalStorage=(key,initVal)=>{if(typeofkey!=='string'){thrownewError('key must be a string');}letpreStr;...};exportdefaultuseStateWithLocalStorage; 以上,就是对 useLocalStorage 的封装过程,附上完成代码: importReactfrom'react';/*** localStorage持久化数据** @param {*} key* ...
react 是非常流行的js框架,而react hook 是目前非常流行的技术,useLocalStorage可以帮助我们在react中非常方便地操作存储数据,当然了这只是一个简单的例子。 import*asReactfrom'react';constuseLocalStorage=(storageKey,fallbackState)=>{const[value,setValue]=React.useState(JSON.parse(localStorage.getItem(storageKey...
很显然,这些逻辑完全可以封装为一个 React Hook,名字很容易想到为 useLocalStorageState。 const useLocalStorageState = (key, defaultValue) => { const data = localStorage.getItem(key); const [value, setValue] = useState(data || defaultValue); return [ value, (val) => { localStorage.setItem(key,...
importuseLocalStoragefrom'react-use-localstorage'; import'./styles.css'; functionApp(){ const[item,setItem]=useLocalStorage('name','Initial Value'); return( SetName to storeinLocalStorage Name:{''} setItem(e.target.value)} /> ...
很显然,这些逻辑完全可以封装为一个 React Hook,名字很容易想到为 useLocalStorageState。 复制 constuseLocalStorageState=(key,defaultValue)=>{constdata=localStorage.getItem(key);const[value,setValue]=useState(data||defaultValue);return[value, (val)=>{localStorage.setItem(key,val);setValue(val); ...
很显然,这些逻辑完全可以封装为一个 React Hook,名字很容易想到为 useLocalStorageState。 constuseLocalStorageState=(key,defaultValue)=>{constdata=localStorage.getItem(key);const[value,setValue]=useState(data||defaultValue);return[value,(val)=>{localStorage.setItem(key,val);setValue(val);}];}; ...
The all new interactive way to master modern React (for fun and profit). useLogger Debug lifecycle events with useLogger. useDocumentTitle Dynamically update the title of a webpage with useDocumentTitle. useIsFirstRender Differentiate between the first and subsequent renders with useIsFirstRender....
实现一个自定义 React Hook：useLocalStorageState 在需求中，需要将数据保存到 localStorage，并在组件初始化时获取，修改时保存到本地。创建一个名为 useLocalStorageState 的 Hook，封装读写逻辑。此实现简单，但支持仅字符串格式，需手动序列化和反序列化以扩展数据类型。增加序列化和反序列化支持，以...
Overview refac(react): useLocalStorage/SessionStorage setState 함수 타입 변경 PR Checklist All tests pass. All type checks pass. I have read the Contributing Guide document. Contributing Guide
很显然,这些逻辑完全可以封装为一个 React Hook,名字很容易想到为 useLocalStorageState。 const useLocalStorageState = (key, defaultValue) => {const data = localStorage.getItem(key);const [value, setValue] = useState(data || defaultValue);return [value,(val) => {localStorage.setItem(key, val);se...