通过搜索嵌套对象属性过滤对象数组 [英] Filtering array of objects by searching nested object properties

问题描述

我有一个对象数组，我想通过将嵌套属性与搜索词进行比较来过滤这些对象.

例如:

 var 数组 = [{类别:'商业'用户: [{名称:'莎莉'标签:[{标签:'会计'}，{标签:'营销'}，...]},{名称:'鲍勃'标签:[{标签:'销售'}，{标签:'会计'}，...]} ...]},{类别:'遗产'用户: [{名称:'琳达'标签:[{标签:'意大利'}，{标签:'马其顿'}，...]},{名称:'乔治'标签:[{标签:'南非'}，{标签:'智利'}，...]},...]},...[

本质上，我想通过搜索词过滤对象的基本数组，该搜索词包括嵌套对象 2 数组中标记属性字符串中的字符.

因此搜索市场"将导致

<预><代码>[{类别:'商业'用户: [{名称:'莎莉'标签:[{标签:'会计'}，{标签:'营销'}，...]},{名称:'鲍勃'标签:[{标签:'销售'}，{标签:'会计'}，...]} ...]}]

谢谢.

解决方案

你可以使用 Array#filter 使用 Array#some.

如果在嵌套数组中找到标记，则停止迭代并将结果返回给过滤器回调.

var array = [{ category: 'Business', users: [{ name: 'Sally', tags: [{ tag: 'accounting' }, { tag: 'marketing' }] }, { name: 'Bob', tags: [{ tag: 'sales' }, { tag: 'accounting' }] }] }, { category: 'Heritage',用户:[{名称:'琳达'，标签:[{标签:'意大利'}，{标签:'马其顿'}]}，{名称:'乔治'，标签:[{标签:'南非'}，{ tag: '智利' }] }] }],标签 = '营销',结果 = array.filter(a => a.users.some(u => u.tags.some(t => t.tag.includes(tag))));console.log(result);

.as-console-wrapper { max-height: 100% !important;顶部:0；}

I have an array of objects that I want to filter by comparing a nested property to a search term.

For example:

 var array = [
      {category: 'Business'
       users: [
                {name: 'Sally'
                 tags: [{tag: 'accounting'}, {tag: 'marketing'},...]
                },
                {name: 'Bob'
                 tags: [{tag: 'sales'}, {tag: 'accounting'},...]
                }...
              ]
       },
       {category: 'Heritage'
        users: [
                 {name: 'Linda'
                  tags: [{tag: 'Italy'}, {tag: 'Macedonia'},...]
                 },
                 {name: 'George'
                  tags: [{tag: 'South Africa'}, {tag: 'Chile'},...]
                 },...
               ]
       },...
    [

Essentially I want to filter the base array of objects by a search terms that include characters from the tag property string in the nested objects 2 arrays down.

So a search for 'market' would result in

[
  {category: 'Business'
   users: [
            {name: 'Sally'
             tags: [{tag: 'accounting'}, {tag: 'marketing'},...]
            },
            {name: 'Bob'
             tags: [{tag: 'sales'}, {tag: 'accounting'},...]
            }...
          ]
   }
]

Thank you.

解决方案

You could use Array#filter with looking into the nested arrays by using Array#some.

If the tag is found in a nested array, then iteration stops and the result is given back to the filter callback.

var array = [{ category: 'Business', users: [{ name: 'Sally', tags: [{ tag: 'accounting' }, { tag: 'marketing' }] }, { name: 'Bob', tags: [{ tag: 'sales' }, { tag: 'accounting' }] }] }, { category: 'Heritage', users: [{ name: 'Linda', tags: [{ tag: 'Italy' }, { tag: 'Macedonia' }] }, { name: 'George', tags: [{ tag: 'South Africa' }, { tag: 'Chile' }] }] }],
    tag = 'marketing',
    result = array.filter(a => a.users.some(u => u.tags.some(t => t.tag.includes(tag))));

console.log(result);

.as-console-wrapper { max-height: 100% !important; top: 0; }

这篇关于通过搜索嵌套对象属性过滤对象数组的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！