<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script src="../../lib/vue.js"></script>
<script src="../../lib/axios.js"></script>
</head>
<body>
<div id="app">
<div v-hello=" 'red' ">454445</div>
<div v-hello=" 'blue' ">1111111111</div>
<div v-hello=" 'yellow' ">222222222222222</div>
<div v-hello="mycolor">3333333333333</div>
</div>
<script>
Vue.directive("hello",function(el,binding){
el.style.background=binding.value
})
/* Vue.directive("hello",{
//指令的生命週期
//創建
inserted(el,binding){
// console.log("綁定當前指令的標籤插入父節點就會執行",binding)
el.style.background=binding.value
},
//更新
update(el,binding){
console.log("綁定當前指令的標籤插入父節點就會執行1",binding)
el.style.background=binding.value
},
}) */
new Vue({
el:"#app",
data:{
mycolor: "red"
}
});
</script>
</body>
</html>
指令輪播
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title></title>
<link rel="stylesheet" href="../05%20swiper/swiper/css/swiper.css" />
<script src="../05%20swiper/swiper/js/swiper.js"></script>
<script src="../../lib/vue.js"></script>
<script src="../../lib/axios.js"></script>
</head>
<style>
.swiper-container{
width:600px;
height: 300px;
}
</style>
<body>
<div id="app">
<div class="swiper-container kerwin">
<div class="swiper-wrapper">
<div class="swiper-slide" v-for="(data, index) in datalist" v-swiper="{current:index, length: datalist.length}">
{{data}}
</div>
<div name="swiper-pagination"></div>
</div>
</div>
</div>
<script>
//vnode 虛擬節點
Vue.directive("swiper",{
//vnode 指令節點
inserted(el,binding,vnode){
console.log(vnode.context.datalist.length);
if(binding.value.current===binding.value.length-1){
new Swiper(".kerwin",{
loop:true,
pagination:{
el:".swiper-pagination"
}
})
}
}
})
new Vue({
el:"#app",
data:{
datalist:[],
},
mounted(){
setTimeout(()=>{
this.datalist=["111111","22222","3333333"];
//狀態同步更新
},2000)
}
});
</script>
</body>
</html>
$nextTick
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>輪播nextTick</title>
<link rel="stylesheet" href="../05%20swiper/swiper/css/swiper.css" />
<script src="../05%20swiper/swiper/js/swiper.js"></script>
<script src="../../lib/vue.js"></script>
<script src="../../lib/axios.js"></script>
</head>
<style>
.swiper-container{
width:600px;
height: 300px;
}
</style>
<body>
<div id="app">
<div class="swiper-container kerwin">
<div class="swiper-wrapper">
<div class="swiper-slide" v-for="(data, index) in datalist">
{{data}}
</div>
<div name="swiper-pagination"></div>
</div>
</div>
</div>
<script>
new Vue({
el:"#app",
data:{
datalist:[],
},
updated(){
console.log("updated")
},
mounted(){
setTimeout(()=>{
this.datalist=["111111","22222","3333333"];
this.$nextTick(()=>{
console.log("我執行的比updated都晚只會更新一次")
new Swiper(".kerwin",{
loop:true,
pagination:{
el:".swiper-pagination"
}
})
})
},2000)
},
})
</script>
</body>
</html>