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Vue tag attributes and conditional rendering of Vue.js

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Release： 2018-03-13 14:06:10

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This time I will bring you the vue tag attributes and conditional rendering of Vue.js. Using the vue tag attributes and conditional rendering of Vue.jsWhat are the precautions?The following is a practical case, let’s take a look one time.

v-bindEventBinding

Normal writing

<a></a>

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Abbreviation

<a>百度一下,你就上当</a>

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Code example

<script>
  export default {    data: function () {      return {        link: &#39;https://wwww.baidu.com&#39;,        title: &#39;title : 百度一下,你就知道&#39;
      }
    }
  }</script>

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Implementation effect:

Vue tag attributes and conditional rendering of Vue.js

v-bind event binding

Common usage of v-bind, binding class

<template>
  <div id="myapp">
    <a v-bind:class="classStr">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        classStr: &#39;red-font&#39;
      }
    }
  }</script>

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Vue tag attributes and conditional rendering of Vue.js

The class bound by v-bind does not conflict with the original class

<template>
  <div id="myapp">
    //class="link-href" v-bind:class="classStr"连个不存在冲突    <a class="link-href" v-bind:class="classStr">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        classStr: &#39;red-font&#39;
      }
    }
  }</script>

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Vue tag attributes and conditional rendering of Vue.js

The content of the class bound by v-bind can be an array

<template>
  <div id="myapp">
    <a class="link-href" v-bind:class="className">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        className: [&#39;red-font&#39;, &#39;big-font&#39;]
      }
    }
  }</script>

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The content of the class bound by v-bind can be an array

There is actually this operation...The following operation is purely high-energy!!!

<template>
  <div id="myapp">
    <a class="link-href" :class="[classA, classB]">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        classA: &#39;hello&#39;,        classB: &#39;word&#39;
      }
    }
  }</script>

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It can also be like this Write

<template>
  <div id="myapp">
    <a class="link-href" :class="[classA, {&#39;red-font&#39;: hasError}]">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        classA: &#39;hello&#39;,        hasError: true
      }
    }
  }</script>

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v-bind to change style through inline style

<template>
  <div id="myapp">
    <a class="link-href" :style="linkClass">百度一下,你就上当</a>
  </div></template><script>
  export default {    data: function () {      return {        linkClass: {          &#39;color&#39;: &#39;red&#39;,          &#39;font-size&#39;: &#39;20px&#39;
        }
      }
    }
  }</script>

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Modify inline style

v-if 和 v-show
<template>  <div id="myapp">    <a v-if="isPartA">partA</a>    <a v-show="!isPartA">partB</a>    <button v-on:click="toggle">切换</button>  </div></template><script>  export default {    data: function () {      return {        isPartA: true      }    },    methods: {      toggle () {        this.isPartA = !this.isPartA      }    }  }</script>

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v-if and v- else can also achieve the above

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