VUE前端cookie简单操作

2019-11-19 15:09:12

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如下是简单cookie操作，当前仅限前端实例，具体内容如下

要注意的有两点：

1、cookie内容存贮的名称
2、删除cookie是通过设置过期为过去时间实现的

<body><div id="app"> <button @click="clearCookie()"> 清除cookie </button></div></body><script> let app = new Vue({ el: "#app", data: { }, created: function () {  this.checkCookie(); }, methods: {  //设置cookie  setCookie: function (cname, cvalue, exdays) {  var d = new Date();  d.setTime(d.getTime() + (exdays * 24 * 60 * 60 * 1000));  var expires = "expires=" + d.toUTCString();  console.info(cname + "=" + cvalue + "; " + expires);  document.cookie = cname + "=" + cvalue + "; " + expires;  console.info(document.cookie);  },  //获取cookie  getCookie: function (cname) {  var name = cname + "=";  var ca = document.cookie.split(';');  for (var i = 0; i < ca.length; i++) {   var c = ca[i];   while (c.charAt(0) == ' ') c = c.substring(1);   if (c.indexOf(name) != -1) return c.substring(name.length, c.length);  }  return "";  },  //清除cookie  clearCookie: function () {  this.setCookie("username", "", -1);  },  checkCookie: function () {  var user = this.getCookie("username");  if (user != "") {   alert("Welcome again " + user);  } else {   user = prompt("Please enter your name:", "");   if (user != "" && user != null) {   this.setCookie("username", user, 365);   }  }  } } })</script>

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