tab栏切换,内容为不断实时刷新数据的vue实现方法
先说一下产品需求,就是有几个tab栏,每个tab栏对应的ajax请求不一样,内容区域一样,内容为实时刷新数据,每3s需要重新请求,返回的数据在内容区域展示,每点击一次tab栏需停止其他tab栏ajax请求,防止阻塞,首次加载页面的时候又不能5个ajax同时请求,只需要请求第一个就好
也没有必要建立5个区域,控制显示隐藏,浪费性能,业务代码就不贴了,把大概原理的代码贴上来
先是用jq实现了一版
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="renderer" content="webkit"> <title>Title</title> <script src="http://code.jquery.com/jquery-2.1.1.min.js"></script> </head> <body> <div> <ul> <li>click</li> <li>click</li> <li>click</li> <li>click</li> <li>click</li> </ul> </div> <script> var arr=[ function(){console.log(0);}, function(){console.log(1);}, function(){console.log(2);}, function(){console.log(3);}, function(){console.log(4);} ]; var seti=setInterval(arr[0],1000) $('li').click(function(){ clearInterval(seti) seti=setInterval(arr[$(this).index()],1000) }) </script> </body> </html>
再看vue版
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"/> <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"> <meta name="renderer" content="webkit"> <title>Title</title> <script src="https://unpkg.com/vue@2.2.6/dist/vue.min.js"></script> </head> <body> <div id="vm"> <button @click="tab(0)">click0</button> <button @click="tab(1)">click1</button> <button @click="tab(2)">click2</button> <button @click="tab(3)">click3</button> <button @click="tab(4)">click4</button> <div> <p>{{show}}</p> </div> </div> <script> var vm1 = new Vue({ el: '#vm', data: { arr:[ function(){console.log(0);}, function(){console.log(1);}, function(){console.log(2);}, function(){console.log(3);}, function(){console.log(4);} ], time1:'', time2:'', show:'', num:0, }, methods: { tab: function(index){ //如果每个tab的方法不一样,提前用一个数组把方法保存起来 clearInterval(this.time1) this.time1=setInterval(this.arr[index],1000) //以下是调用同一种方法的时候可以不需要设置数组 this.num = 0 clearInterval(this.time2) this.time2 = this.fun(index) }, fun:function(index){ var _this=this; return setInterval(function(){ //写个随机数显示在页面,具体业务需求应该是ajax请求 var random=String(parseInt(Math.random()*100000000000)) //字符一个一个显示在页面上 _this.show=index+random.substring(0,_this.num++); },300) } }, mounted:function(){ this.time1=setInterval(this.arr[0],1000) } }); </script> </body> </html>