JavaScript缓存数组

       //1.把数组转换为对象存入
       let arr = [{id:1,name:'测试1'},{id:2,name:'测试2'}]
       sessionStorage.setItem('data', JSON.stringify(arr))

    //2.获取缓存    
    const data= JSON.parse(sessionStorage.getItem('data'))
        console.log(data)