blocks|key|3939953|text|考虑到数组是有序的，您可以这样做：|type|unstyled|depth|inlineStyleRanges|entityRanges|data|3939954|++++const+array+=+[
++++++{
++++++++name:+"Another+title",
++++++++nationality:+"American"
++++++},
++++++{
++++++++name:+"Another+american+item",
++++++++nationality:+"American"
++++++},
++++++{
++++++++name:+"British+title+string",
++++++++nationality:+"British"
++++++},
++++++{
++++++++name:+"Name",
++++++++nationality:+"Dutch"
++++++},

++++];
++++const+arrayAux+=+[];
++++var+j+=+0;
++++for+(var+i+=+0;+i+<+array.length;)+{
++++++console.log(array[i].name);
++++++arrayAux.push({
++++++++nationality:+array[i].nationality,
++++++++names:+[array[i].name]
++++++});
++++++i%2B%2B;
++++++while+(+i+<+array.length+&&+array[i].nationality+===+array[i+-+1].nationality)+{
++++++++arrayAux[j].names.push(array[i].name);
++++++++i%2B%2B;
++++++}
++++++j%2B%2B;

++++}
++++console.log(arrayAux);|code-block|syntax|javascript|3939955|在html中：|3939956|<div+v-for="item+in+arrayAux">
++<h2>{{+item.nationality+}}</h2>
++<ul>
++++<li+v-for="n+in+item.names">
++++++{{+n.name+}}
++++</li>
++</ul>
</div>|3939957|entityMap^0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|N|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|O|8|@]|9|@]|A|$]]|$1|I|3|J|5|D|7|P|8|@]|9|@]|A|$E|F]]|$1|K|3|-4|5|6|7|Q|8|@]|9|@]|A|$]]]|L|$]]

<p>You can do this, considering that the array is ordered:</p>

<pre><code>    const array = [
      {
        name: "Another title",
        nationality: "American"
      },
      {
        name: "Another american item",
        nationality: "American"
      },
      {
        name: "British title string",
        nationality: "British"
      },
      {
        name: "Name",
        nationality: "Dutch"
      },

    ];
    const arrayAux = [];
    var j = 0;
    for (var i = 0; i &lt; array.length;) {
      console.log(array[i].name);
      arrayAux.push({
        nationality: array[i].nationality,
        names: [array[i].name]
      });
      i++;
      while ( i &lt; array.length &amp;&amp; array[i].nationality === array[i - 1].nationality) {
        arrayAux[j].names.push(array[i].name);
        i++;
      }
      j++;

    }
    console.log(arrayAux);
</code></pre>

<p>In the html:</p>

<pre><code>&lt;div v-for="item in arrayAux"&gt;
  &lt;h2&gt;{{ item.nationality }}&lt;/h2&gt;
  &lt;ul&gt;
    &lt;li v-for="n in item.names"&gt;
      {{ n.name }}
    &lt;/li&gt;
  &lt;/ul&gt;
&lt;/div&gt;
</code></pre>


blocks|key|3943490|text|如果您有多个具有相同国籍的项目，并且希望对它们进行分组，请在_.sortBy()之前使用_.groupBy()|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|3943491|​|3943492|Vue.config.devtools+=+false;
Vue.config.productionTip+=+false;
new+Vue({
++el:+'#app',
++template:+'#appTemplate',
++data:+()+=>+({
++++rawData:+[{
++++++++name:+"British+title+string",
++++++++nationality:+"British"
++++++},
++++++{
++++++++name:+"Another+title",
++++++++nationality:+"American"
++++++},
++++++{
++++++++name:+"Name",
++++++++nationality:+"Dutch"
++++++},
++++++{
++++++++name:+"Another+american+item",
++++++++nationality:+"American"
++++++}
++++]
++}),
++computed:+{
++++groupedItems()+{
++++++return+_.sortBy(
++++++++_.map(
++++++++++_.groupBy(this.rawData,+'nationality'),+
++++++++++items+=>+({
++++++++++++items,
++++++++++++nationality:+items[0].nationality
++++++++++})
++++++++),+
++++++++['nationality']
++++++);
++++}
++}
})|code-block|syntax|javascript|3943493|<script+src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<script+src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>
<script+type="text/template"+id="appTemplate">
++<div>
++++<template+v-for="group+in+groupedItems">
++++++<h2+v-text="group.nationality"+/>
++++++<ul>
++++++++<li+v-for="(item,+index)+in+group.items"+:key="index"+v-text="item.name"+/>
++++++</ul>
++++</template>
++</div>
</script>
<div+id="app"></div>|3943494|3943495|为了方便和数据可读性，我将第一个项目的nationality映射为组的国籍(并将分组的项目命名为items)，但是您也可以在模板中直接使用项目0的国籍。|3943496|为了演示，下面是它应该是什么样子的：|3943497|3943498|Vue.config.devtools+=+false;
Vue.config.productionTip+=+false;
new+Vue({
++el:+'#app',
++template:+'#appTemplate',
++data:+()+=>+({
++++rawData:+[{
++++++++name:+"British+title+string",
++++++++nationality:+"British"
++++++},
++++++{
++++++++name:+"Another+title",
++++++++nationality:+"American"
++++++},
++++++{
++++++++name:+"Name",
++++++++nationality:+"Dutch"
++++++},
++++++{
++++++++name:+"Another+american+item",
++++++++nationality:+"American"
++++++}
++++]
++}),
++computed:+{
++++groupedItems()+{
++++++return+_.sortBy(
++++++++_.groupBy(this.rawData,+'nationality'),+
++++++++['0.nationality']
++++++);
++++}
++}
})|3943499|<script+src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"></script>
<script+src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>
<script+type="text/template"+id="appTemplate">
++<div>
++++<template+v-for="grouped+in+groupedItems">
++++++<h2+v-text="grouped[0].nationality"+/>
++++++<ul>
++++++++<li+v-for="(item,+index)+in+grouped"+:key="index"+v-text="item.name"+/>
++++++</ul>
++++</template>
++</div>
</script>
<div+id="app"></div>|3943500|3943501|注意上面的两个示例都输出了所需的标记。如果您希望每个项目都有自己的包装器，请将<template>替换为html标签并添加键。即：|3943502|<article+v-for="(grouped,+key)+in+groupedItems"+:key="key">|3943503|entityMap^0|U|A|18|B|0|0|0|0|0|J|B|1C|5|1Z|1|0|0|0|0|0|0|13|A|0|0^^$0|@$1|2|3|4|5|6|7|15|8|@$9|16|A|17|B|C]|$9|18|A|19|B|C]]|D|@]|E|$]]|$1|F|3|G|5|6|7|1A|8|@]|D|@]|E|$]]|$1|H|3|I|5|J|7|1B|8|@]|D|@]|E|$K|L]]|$1|M|3|N|5|J|7|1C|8|@]|D|@]|E|$K|L]]|$1|O|3|G|5|6|7|1D|8|@]|D|@]|E|$]]|$1|P|3|Q|5|6|7|1E|8|@$9|1F|A|1G|B|C]|$9|1H|A|1I|B|C]|$9|1J|A|1K|B|C]]|D|@]|E|$]]|$1|R|3|S|5|6|7|1L|8|@]|D|@]|E|$]]|$1|T|3|G|5|6|7|1M|8|@]|D|@]|E|$]]|$1|U|3|V|5|J|7|1N|8|@]|D|@]|E|$K|L]]|$1|W|3|X|5|J|7|1O|8|@]|D|@]|E|$K|L]]|$1|Y|3|G|5|6|7|1P|8|@]|D|@]|E|$]]|$1|Z|3|10|5|6|7|1Q|8|@$9|1R|A|1S|B|C]]|D|@]|E|$]]|$1|11|3|12|5|J|7|1T|8|@]|D|@]|E|$K|L]]|$1|13|3|-4|5|6|7|1U|8|@]|D|@]|E|$]]]|14|$]]

<p>If you have multiple items with same nationality and you want to group them up, use <code>_.groupBy()</code> before <code>_.sortBy()</code>:</p>

<p><div class="snippet" data-lang="js" data-hide="true" data-console="true" data-babel="false">
<div class="snippet-code snippet-currently-hidden">
<pre class="snippet-code-js lang-js prettyprint-override"><code>Vue.config.devtools = false;
Vue.config.productionTip = false;
new Vue({
  el: '#app',
  template: '#appTemplate',
  data: () =&gt; ({
    rawData: [{
        name: "British title string",
        nationality: "British"
      },
      {
        name: "Another title",
        nationality: "American"
      },
      {
        name: "Name",
        nationality: "Dutch"
      },
      {
        name: "Another american item",
        nationality: "American"
      }
    ]
  }),
  computed: {
    groupedItems() {
      return _.sortBy(
        _.map(
          _.groupBy(this.rawData, 'nationality'), 
          items =&gt; ({
            items,
            nationality: items[0].nationality
          })
        ), 
        ['nationality']
      );
    }
  }
})</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"&gt;&lt;/script&gt;
&lt;script type="text/template" id="appTemplate"&gt;
  &lt;div&gt;
    &lt;template v-for="group in groupedItems"&gt;
      &lt;h2 v-text="group.nationality" /&gt;
      &lt;ul&gt;
        &lt;li v-for="(item, index) in group.items" :key="index" v-text="item.name" /&gt;
      &lt;/ul&gt;
    &lt;/template&gt;
  &lt;/div&gt;
&lt;/script&gt;
&lt;div id="app"&gt;&lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p>For convenience and data readability, I mapped first item's <code>nationality</code> as the group's nationality (and named the grouped items <code>items</code>), but you could have used item <code>0</code>'s nationality in the template directly, instead.<br>
To demonstrate, here's how that would have looked like:</p>

<p><div class="snippet" data-lang="js" data-hide="true" data-console="true" data-babel="false">
<div class="snippet-code snippet-currently-hidden">
<pre class="snippet-code-js lang-js prettyprint-override"><code>Vue.config.devtools = false;
Vue.config.productionTip = false;
new Vue({
  el: '#app',
  template: '#appTemplate',
  data: () =&gt; ({
    rawData: [{
        name: "British title string",
        nationality: "British"
      },
      {
        name: "Another title",
        nationality: "American"
      },
      {
        name: "Name",
        nationality: "Dutch"
      },
      {
        name: "Another american item",
        nationality: "American"
      }
    ]
  }),
  computed: {
    groupedItems() {
      return _.sortBy(
        _.groupBy(this.rawData, 'nationality'), 
        ['0.nationality']
      );
    }
  }
})</code></pre>
<pre class="snippet-code-html lang-html prettyprint-override"><code>&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.5.17/vue.js"&gt;&lt;/script&gt;
&lt;script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"&gt;&lt;/script&gt;
&lt;script type="text/template" id="appTemplate"&gt;
  &lt;div&gt;
    &lt;template v-for="grouped in groupedItems"&gt;
      &lt;h2 v-text="grouped[0].nationality" /&gt;
      &lt;ul&gt;
        &lt;li v-for="(item, index) in grouped" :key="index" v-text="item.name" /&gt;
      &lt;/ul&gt;
    &lt;/template&gt;
  &lt;/div&gt;
&lt;/script&gt;
&lt;div id="app"&gt;&lt;/div&gt;</code></pre>
</div>
</div>
</p>

<p>Note both of the above examples output the required markup. If you want each item to have its own wrapper, replace <code>&lt;template&gt;</code> with an html tag and add keys. i.e:</p>

<pre><code>&lt;article v-for="(grouped, key) in groupedItems" :key="key"&gt;
</code></pre>


<p>In Vue, i'm trying to generate a list based on a property in an object.
I have an array coming from the vuex store that looks like this:</p>

<pre><code>const array = [
 { 
   name: "British title string"
   nationality: "British"
 },
 { 
   name: "Another title"
   nationality: "American"
 },
 { 
   name: "Name"
   nationality: "Dutch"
 },
{ 
   name: "Another american item"
   nationality: "American"
 },
];

</code></pre>

<p>What i want to have is the output like this using v-for:</p>

<pre><code>&lt;h2&gt;British&lt;/h2&gt;
&lt;ul&gt;
   &lt;li&gt;British title string&lt;/li&gt;
&lt;/ul&gt;

&lt;h2&gt;American&lt;/h2&gt;
&lt;ul&gt;
   &lt;li&gt;Another title&lt;/li&gt;
   &lt;li&gt;Another american item&lt;/li&gt;
&lt;/ul&gt;

&lt;h2&gt;Dutch&lt;/h2&gt;
&lt;ul&gt;
   &lt;li&gt;Name&lt;/li&gt;
&lt;/ul&gt;
</code></pre>

<p>I have already sorted the array by the <code>nationality</code> property using lodash _.sortBy and it's given me an array sorted by nationality but i want to add a H2 element with the value of nationality.</p>


Generate a list with a head based on object property in array

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

文章

问答

视频

学习中心

腾讯云实验室

直播

竞赛

腾讯云代码分析专区

腾讯iOA零信任安全管理系统专区

腾讯云架构师技术同盟交流圈

腾讯云数据库专区

腾讯云顾问专区

腾讯云原生专区

腾讯混元专区

腾讯云TCE专区

腾讯云Lighthouse专区

腾讯云HAI专区

腾讯云Edgeone专区

腾讯云存储专区

腾讯云智能专区

腾讯轻联专区 

腾讯云开发专区

TAPD专区

腾讯轻量云游戏服专区

腾讯云最具价值专家

腾讯云架构师技术同盟

腾讯云创作之星

腾讯云开发者先锋

腾讯云代码助手

云原生构建

TAPD 敏捷项目管理

Cloud Studio

SDK中心

API中心

命令行工具

涵盖代码开发、场景应用、自动测试全流程，助你从零构建专属AI助手

一站式MCP教程库，解锁AI应用新玩法

在Vue中，我试图根据对象中的属性生成一个列表。我有一个来自vuex商店的数组，看起来像这样：const array = [ {    name: "British title string"   nationality: "British" }, {    name: "Another title"   nation...

问根据数组中的对象属性生成带头部的列表
EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问根据数组中的对象属性生成带头部的列表EN

社区

活动

圈层

关于

腾讯云开发者

热门产品

热门推荐

更多推荐

问根据数组中的对象属性生成带头部的列表
EN