如何向?yàn)g覽器localSorage某個(gè)對象中增加文本，而不是替換

localStorage.setItem("name","caibin") //存儲名字為name值為caibin的變量
localStorage.getItem("name") //caibin,讀取保存在localStorage對象里名為name的變量的值
localStorage.removeItem("name"); //刪除name
localStorage.clear() // 清空緩存

先拿出來 合并 在set進(jìn)去吧

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

希望我的回答對你有幫助。

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