如何将localstorage项设置回null。 [英] How to set localstorage item back to null.

问题描述

我正在使用系统在用户发生重大更新时向用户发出警报，并且我使用LocalStorage执行此操作，当我制作系统时，我让系统检查tip是否为null，然后将当他们收到警报时提示为真。现在，我想将'tip'localstorage设置为null，并使用tip2代替。

我会这么做吗？ localStorage.setItem（'tip'，'null'）;

解决方案

localStorage.removeItem（'tip '）如果您打算删除密钥

localStorage.setItem（'tip'，'null'） 如果您只是想将其设置为字符串null

I'm using a system to alert users when a major update has happened to a site, and I do it with LocalStorage, when I made the system, I made the system check if tip was "null", then set "tip" to true when they got the alert. Now, I would like to set the 'tip' localstorage back to null, and use "tip2" instead.

Would I do this? localStorage.setItem('tip', 'null');

解决方案

localStorage.removeItem('tip') if you are aiming to remove the key

localStorage.setItem('tip', 'null') if you just want to set it to the string "null"

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