[js-cookie 官方文檔](https://www.npmjs.com/package/js-cookie) ### 一、安裝 ~~~ npm install js-cookie --save ~~~ ### 二、引用 ~~~ import Cookies from 'js-cookie' ~~~ ### 三、一般使用 1. 存到Cookie去 ~~~ // Create a cookie, valid across the entire site: Cookies.set('name', 'value'); // Create a cookie that expires 7 days from now, valid across the entire site: Cookies.set('name', 'value', { expires: 7 }); // Create an expiring cookie, valid to the path of the current page: Cookies.set('name', 'value', { expires: 7, path: '' }); ~~~ 2.在Cookie中取出 ~~~ // Read cookie: Cookies.get('name'); // => 'value' Cookies.get('nothing'); // => undefined // Read all visible cookies: Cookies.get(); // => { name: 'value' } ~~~ 3.刪除 ~~~ // Delete cookie: Cookies.remove('name'); // Delete a cookie valid to the path of the current page: Cookies.set('name', 'value', { path: '' }); Cookies.remove('name'); // fail! Cookies.remove('name', { path: '' }); // removed! ~~~ ### 四、特殊使用（在Cookie中存對象） 跟一般使用不同的是，從Cookie中取出的時候，要從字符串轉換成json格式： ~~~ const user = { name: 'lia', age: 18 } Cookies.set('user', user) const liaUser = JSON.parse(Cookies.get('user')) ~~~