如何向浏览器localSorage某个对象中增加文本，而不是替换

Question

问题：
如何向浏览器localSorage某个对象中增加文本，而不是替换？？

Answer 1

先拿出来 合并 在set进去吧

Answer 2

localStorage.setItem("name","caibin") //存储名字为name值为caibin的变量
localStorage.getItem("name") //caibin,读取保存在localStorage对象里名为name的变量的值
localStorage.removeItem("name"); //删除name
localStorage.clear() // 清空缓存

Answer 3

localStorage.setItem("name",localStorage.getItem("name") + "test")

Answer 4

const appendTextForStorage = storage => (key, value)  => 
   storage.setItem(key, (storage.getItem(key) || '') + value)

const appendTextForLocalStorage = appendTextForStorage(window.localStorage)


appendTextForLocalStorage('hello', 'world')
appendTextForLocalStorage('hello', 'world2')

// test
console.log(window.localStorage.getItem('hello') === 'worldworld2') // true

希望我的回答对你有帮助。