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The content introduced in this article is a summary of some simple Vue.js instructions, which has a certain reference value. Now I share it with you. Friends in need can refer to it
HTML page:
<p id="app">{{message}}</p>
The data in the page is the data in data
Template instructions: control the content of the module
v-text (Control the text content of the element)
eg: <p v-text="a"></p> --> a 是data中的a
v-html (Control the content of the element, including internal structure)
eg:<p v-html="a"></p>
Control module hidden
v-if
eg:<p v-if="isShow"></p> -->isShow的值是布尔值,true:显示, false,隐藏
v-show
eg:<p v-if="isShow"></p> -->isShow的值是布尔值,true:显示, false,隐藏
Rendering loop list v-for
eg: <ul> <li v-for="item in items"> <p v-text="item.label"></p> -->item是items里的每一个对象,items是data里的数组 </li></ul>
Event binding v-on
eg:<button v-on:click="doSomething"></button> click 可以是hover,focus等事件 eg: <button @click="doSomething"></button> 简写形式
Attribute binding
v-bind eg:<img v-bind:src="imageSrc"> src属性赋值 imgSrc (简写)eg: <p :class="{red:isRed}"></p> isRed:true:加上类red,false:不加类red eg: <p :class="[classA, classB]"></p> 绑定多个类名 eg: <p :class="[classA,{classB: isB, classC: isC}]"></p>
Example:
js:var app = new Vue({ el:"#app", data:{ 这里填写数据,以键值对的形式 a:"heollo", demo:1, items:[{label:"vue1"},{label:"vue2"}] }, methods:{这里可以写自己定义的函数, doSomething:function(){ console.log(this.a); --> this指代的是vue的对象, a 是data里的a } }, watch:{ 监听,监听demo的变化, 参数是变化前后的值变化 'demo':function(val, oldVal){ console.log(val, oldVal); } } });
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