Cookie是网站设计者放置在客户端的小文本文件，一般后台语言使用的比较多，可以实现用户个性化的一些需求。js-cookie插件是一个JS操作cookie的插件，源文件只有3.34 KB，非常轻量级。js-cookie也支持npm和Bower安装和管理。下面看看js-cookie的具体用法。
A simple,lightweight JavaScript API for handling cookies
Works in all browsers Accepts any character Heavily tested No dependency Unobtrusive JSON support Supports AMD/CommonJS RFC 6265 compliant Useful Wiki Enable custom encoding/decoding ~900 bytes gzipped!
引用方法:
1、引入js-cookie.js
1.直接饮用cdn：
3.模块化开发时: import Cookies from 'js-cookie'
2、js-cookie.js常用的API和方法
a、设置cookie
Cookies.set('name','value',{ expires: 7,path: '' });//7天过期
Cookies.set('name',{ foo: 'bar' });//设置一个json
b、读取cookie
Cookies.get('name');//获取cookie
Cookies.get(); #读取所有的cookie
c、删除cookie
Cookies.remove('name'); #删除cookie时必须是同一个路径。
下面是国外的介绍
Basic Usage
Create a cookie,valid across the entire site:
Cookies.set('name','value');
Create a cookie that expires 7 days from now,{ expires: 7 });
Create an expiring cookie,valid to the path of the current page:
Cookies.set('name',path: '' });
Read cookie:
Cookies.get('name'); // => 'value' Cookies.get('nothing'); // => undefined
Read all visible cookies:
Cookies.get(); // => { name: 'value' }
Delete cookie:
Cookies.remove('name');
Delete a cookie valid to the path of the current page:
Cookies.set('name',{ path: '' }); Cookies.remove('name'); // fail! Cookies.remove('name',{ path: '' }); // removed!
IMPORTANT! When deleting a cookie,you must pass the exact same path and domain attributes that were used to set the cookie,unless you're relying on the default attributes.
Note: Removing a nonexistent cookie does not raise any exception nor return any value.
Namespace conflicts
If there is any danger of a conflict with the namespace Cookies,the noConflict method will allow you to define a new namespace and preserve the original one. This is especially useful when running the script on third party sites e.g. as part of a widget or SDK.
// Assign the js-cookie api to a different variable and restore the original "window.Cookies"
var Cookies2 = Cookies.noConflict(); Cookies2.set('name','value');
Note: The .noConflict method is not necessary when using AMD or CommonJS,thus it is not exposed in those environments.
JSON
js-cookie provides unobtrusive JSON storage for cookies.
When creating a cookie you can pass an Array or Object Literal instead of a string in the value. If you do so,js-cookie will store the string representation of the object according to JSON.stringify:
Cookies.set('name',{ foo: 'bar' });
When reading a cookie with the default Cookies.get api,you receive the string representation stored in the cookie:
When reading a cookie with the Cookies.getJSON api,you receive the parsed representation of the string stored in the cookie according to JSON.parse:
Note: To support IE6-7 (and IE 8 compatibility mode) you need to include the JSON-js polyfill:https://github.com/douglascrockford/JSON-js
更多的可以参考官方说明：
原文链接：https://www.f2er.com/js/33047.html