如何在 localStorage 中存储数组? [英] How do I store an array in localStorage?

问题描述

如果我不需要 localStorage，我的代码将如下所示:

If I didn't need localStorage, my code would look like this:

var names=new Array(); 
names[0]=prompt("New member name?");

这有效.但是，我需要将此变量存储在 localStorage 中，事实证明它非常顽固.我试过了:

This works. However, I need to store this variable in localStorage and it's proving quite stubborn. I've tried:

var localStorage[names] = new Array();
localStorage.names[0] = prompt("New member name?");

我哪里出错了?

推荐答案

localStorage 仅支持字符串.使用 JSON.stringify() 和 JSON.parse().

localStorage only supports strings. Use JSON.stringify() and JSON.parse().

var names = [];
names[0] = prompt("New member name?");
localStorage.setItem("names", JSON.stringify(names));

//...
var storedNames = JSON.parse(localStorage.getItem("names"));

您也可以使用直接访问来设置/获取项目:

You can also use direct access to set/get item:

localstorage.names = JSON.stringify(names);
var storedNames = JSON.parse(localStorage.names);

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