这将对对象起作用。

localStorage.removeItem('key');

Or

localStorage.setItem('key', 0 );  

试着用

$(window).unload(function(){
  localStorage.clear();
});

希望这对你有用

There is a very specific use case in which any suggestion to use sessionStorage instead of localStorage does not really help. The use-case would be something as simple as having something stored while you have at least one tab opened, but invalidate it if you close the last tab remaining. If you need your values to be saved cross-tab and window, sessionStorage does not help you unless you complicate your life with listeners, like I have tried. In the meantime localStorage would be perfect for this, but it does the job 'too well', since your data will be waiting there even after a restart of the browser. I ended up using a custom code and logic that takes advantage of both.

I'd rather explain then give code. First store what you need to in localStorage, then also in localStorage create a counter that will contain the number of tabs that you have opened. This will be increased every time the page loads and decreased every time the page unloads. You can have your pick here of the events to use, I'd suggest 'load' and 'unload'. At the time you unload, you need to do the cleanup tasks that you'd like to when the counter reaches 0, meaning you're closing the last tab. Here comes the tricky part: I haven't found a reliable and generic way to tell the difference between a page reload or navigation inside the page and the closing of the tab. So If the data you store is not something that you can rebuild on load after checking that this is your first tab, then you cannot remove it at every refresh. Instead you need to store a flag in sessionStorage at every load before increasing the tab counter. Before storing this value, you can make a check to see if it already has a value and if it doesn't, this means you're loading into this session for the first time, meaning that you can do the cleanup at load if this value is not set and the counter is 0.

您可以简单地使用sessionStorage。因为sessionStorage允许在浏览器窗口关闭时清除所有键值。

看这里:SessionStorage- MDN

for (let i = 0; i < localStorage.length; i++) {
    if (localStorage.key(i).indexOf('the-name-to-delete') > -1) {
        arr.push(localStorage.key(i));
    }
}

for (let i = 0; i < arr.length; i++) {
    localStorage.removeItem(arr[i]);
}

虽然有些用户已经回答了这个问题，但我将给出一个应用程序设置示例来解决这个问题。

我也有同样的问题。我在我的angularjs应用程序中使用https://github.com/grevory/angular-local-storage模块。如果你这样配置你的应用程序，它会把变量保存在会话存储中，而不是本地存储。因此，如果您关闭浏览器或关闭选项卡，会话存储将自动删除。你什么都不需要做。

app.config(function (localStorageServiceProvider) {
  localStorageServiceProvider
  .setPrefix('myApp')
  .setStorageType('sessionStorage')
});

希望能有所帮助。