通过搜索嵌套对象属性来过滤对象数组 [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进行过滤.

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

例如:

 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'},...]
                 },...
               ]
       },...
    [

基本上，我想通过一个搜索词来过滤对象的基本数组，这些搜索词包括嵌套对象2个数组以下的标签属性字符串中的字符.

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.

因此，搜索市场"将导致

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'},...]
            }...
          ]
   }
]

谢谢.

推荐答案

您可以使用

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

如果在嵌套数组中找到该标记，则迭代会停止，并将结果返回给过滤器回调.

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; }

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