Vue.js common instructions - tutorial on looping the v-for instruction-JS Tutorial-php.cn

Vue.js common instructions - tutorial on looping the v-for instruction

陈政宽～

Release： 2017-06-28 15:36:29

Original

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This article mainly introduces you to the relevant information about the common instructions of Vue.js, the loop use of v-for instructions. The article introduces it in detail through the example code, which has certain reference and learning value for everyone. Friends who need it Let’s take a look below.

Preface

In Vue.js, the v-for directive requires special syntax in the form of item in items, items is the source dataArrayAnd item is an alias for array element iteration.

v-for can bind data to an array to render a list:

<p id="wantuizhijia">
 <ol>
  <li v-for="site in sites">
   {{ site.name }}
  </li>
 </ol>
</p>

<script>
 new Vue({
  el: &#39;#wantuizhijia&#39;,
  data: {
   sites: [
    { name: &#39;网推之家&#39; },
    { name: &#39;谷歌&#39; },
    { name: &#39;淘宝&#39; }
   ]
  }
 })
</script>

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Output:

##Use v-for in template:

<p id="wantuizhijia">
 <ul>
  <template v-for="place in places">
   <li>{{ place.name }}</li>
   <li>--------------</li>
  </template>
 </ul>
</p>

<script>
 new Vue({
  el: &#39;#wantuizhijia&#39;,
  data: {
   places: [
    { name: &#39;厦门&#39; },
    { name: &#39;漳州&#39; },
    { name: &#39;福州&#39; }
   ]
  }
 })
</script>

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Effect:

v-for can iterate data through the properties of an object:

<p id="wangtuizhijia">
 <ul>
  <li v-for="value in object">
   {{ value }}
  </li>
 </ul>
</p>

<script>
 new Vue({
  el: &#39;#wangtuizhijia&#39;,
  data: {
   object: {
    name: &#39;脚本之家&#39;,
    url: &#39;http://www.jb51.net&#39;,
    slogan: &#39;美好生活，等待你的开创！&#39;
   }
  }
 })
</script>

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Effect:

Script House

http://www.jb51.net

A wonderful life is waiting for you to create it!

#v-for iterates data through the properties of an object. You can provide the second parameter as the key name:

<p id="wangtuizhijia">
 <ul>
  <li v-for="(value, key) in object">
   {{ key }} : {{ value }}
  </li>

 </ul>
</p>

<script>
 new Vue({
  el: &#39;#wangtuizhijia&#39;,
  data: {
   object: {
    name: &#39;脚本之家&#39;,
    url: &#39;http://www.jb51.net&#39;,
    slogan: &#39;美好生活，等待你的开创！&#39;
   }
  }
 })
</script>

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Effect:

name : Script Home

url : http ://www.jb51.net

slogan: A better life is waiting for you to create it!

#v-for Iterates data through the properties of an object, taking the third parameter as the index :

<p id="wangtuizhijia">
 <ul>
  <li v-for="(value, key, index) in object">
   {{ index }} {{ key }}:{{ value }}
  </li>

 </ul>
</p>

<script>
 new Vue({
  el: &#39;#wangtuizhijia&#39;,
  data: {
   object: {
    name: &#39;脚本之家&#39;,
    url: &#39;http://www.jb51.net&#39;,
    slogan: &#39;美好生活，等待你的开创！&#39;
   }
  }
 })
</script>

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Effect:

0 name: Script House

1 url: http://www.jb51.net

2 slogan: A better life is waiting for you to create it!

v-for can also loop integer

<p id=”wangtuizhijia”>
<ul>
<li v-for=”n in 10″>
{{ n }}
</li>
</ul>
</p>
<script>
new Vue({
el: ‘#wangtuizhijia&#39;
})
</script>
</body>

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Effect:

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Summary

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