vue各類實例集合
注意：如下全部示例基於vue 2.x、Vuex 2.x、css
vm.$mount()-掛載：html
<body>
<div id="a">
</div>
</body>
<script>
var A = Vue.extend({
template: '<p>123</p>'
});
/*// 自動掛載
new A({
el: '#a'
});*/
var a = new A();
a.$mount('#a')// 手動掛載
</script>
局部註冊：vue
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<com-b></com-b>
<com-c></com-c>
<com-d></com-d>
</div>
<template id="com-d">
<div>comD</div>
</template>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script>
var comC = Vue.component('comC', {
template: '<div>comC</div>'
});
var vm = new Vue({
el: '#app',
components: {
comB: {
template: '<div>comB</div>'
},
comC: comC,
comD: {
template: "#com-d"
}
}
});
</script>
</body>
</html>
動態組件：jquery
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<component :is="cur"></component>
<button @click="change">change</button>
</div>
<template id="comA">
<div>comA</div>
</template>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
cur: {
template: '<div>cur</div>'
}
},
methods: {
change: function(){
this.cur = this.cur == 'comA' ? 'comB' : 'comA'
}
},
components: {
comA: {
template: '#comA'
},
comB: {
template: '<div>comB</div>'
}
}
})
</script>
</body>
</html>
計算示例(computed)：web
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
{{intro}}
<input v-model="name"/>
<input v-model="age"/>
</div>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script>
var vm = new Vue({
el: '#app',
data: {
name: 'Samve',
age: 32
},
computed: {
intro: function(){
return 'name：' + this.name + ", age: " + this.age;
}
}
});
</script>
</body>
</html>
自定義指令：實現"點擊按鈕使文本框獲取焦點"示例(directive)ajax
<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<input v-focus="isFocus"/>
<button @click="change">change</button>
</div>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script>
Vue.directive('focus', {
inserted: function(el, binding){
if(binding.value){
el.focus();
}else{
el.blur();
}
},
componentUpdated: function(el, binding){
if(binding.value){
el.focus();
}else{
el.blur();
}
}
});
let vm = new Vue({
el: '#app',
data: {
isFocus: true
},
methods: {
change(){
this.isFocus = !this.isFocus;
}
}
});
</script>
</body>
</html>
使用jquery調用接口數據：vuex
<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<div>{{list}}</div>
</div>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script>
let vm = new Vue({
el: '#app',
data: {
list: ''
},
created: function(){
let that = this;
$.ajax({
url: 'http://v3.faqrobot.org/servlet/AQ?s=p&sysNum=14464304598886414&&sourceId=0×tamp=1473514741278&dataType=json',
dataType: 'jsonp',
success: function(data){
that.list = data.webConfig.helloWord;
}
})
}
})
</script>
</body>
</html>
slot示例：json
<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<com-a>
<p>中國科學院</p>
<p>院士</p>
<p slot="slotA">楊院士</p>
<com-b></com-b>
</com-a>
</div>
<template id="comA">
<div>
<slot></slot>
<slot></slot>
<slot name="slotA"></slot>
<P>comA</P>
</div>
</template>
<template id="comB">
<div>comB</div>
</template>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<script>
Vue.component('comA', {
template: '#comA'
});
Vue.component('comB', {
template: '#comB'
});
let vm = new Vue({
el: '#app'
});
</script>
</body>
</html>
vuex示例：app
a. 簡單計數jsonp
<!DOCTYPE html>
<html lang="en" xmlns:v-bind="http://www.w3.org/1999/xhtml" xmlns:v-on="http://www.w3.org/1999/xhtml">
<head>
<meta charset="UTF-8">
<title>Title</title>
</head>
<body>
<div id="app">
<div>{{num}}</div>
<div><button @click="add">add</button></div>
<div><button @click="reduce">reduce</button></div>
</div>
<script src="https://cdn.bootcss.com/vue/2.5.17-beta.0/vue.js"></script>
<script src="https://cdn.bootcss.com/vuex/3.0.1/vuex.js"></script>
<script>
Vue.use(Vuex);
let myStore = new Vuex.Store({
state: {
num: 0
},
mutations: {
add: function(state){
state.num++;
},
reduce: function(state){
state.num--;
}
}
});
let vm = new Vue({
el: '#app',
store: myStore,
computed: {
num: function(){
return myStore.state.num;
}
},
methods: {
add(){
myStore.commit('add');
},
reduce(){
myStore.commit('reduce');
}
}
})
</script>
</body>
</html>
b. 子組件獲取Vuex狀態：
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