任何属性都包含值的对象的过滤器数组 [英] Filter array of objects whose any properties contains a value

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本文介绍了任何属性都包含值的对象的过滤器数组的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

我想知道根据 string 关键字 过滤对象数组的最简洁、更好的方法是什么.必须在对象的任何属性中进行搜索.

I'm wondering what is the cleanest way, better way to filter an array of objects depending on a string keyword. The search has to be made in any properties of the object.

当我输入 lea 时,我想遍历所有对象及其所有属性以返回包含 lea

When I type lea I want to go trough all the objects and all their properties to return the objects that contain lea

当我输入 italy 时,我想遍历所有对象及其所有属性以返回包含 italy 的对象.

When I type italy I want to go trough all the objects and all their properties to return the objects that contain italy.

我知道有很多解决方案,但到目前为止我只看到了一些您需要指定要匹配的属性.

I know there are lot of solutions but so far I just saw some for which you need to specify the property you want to match.

欢迎使用 ES6 和 lodash!

ES6 and lodash are welcome!

  const arrayOfObject = [{
      name: 'Paul',
      country: 'Canada',
    }, {
      name: 'Lea',
      country: 'Italy',
    }, {
      name: 'John',
      country: 'Italy',
    }, ];

    filterByValue(arrayOfObject, 'lea')   // => [{name: 'Lea',country: 'Italy'}]
    filterByValue(arrayOfObject, 'ita')   // => [{name: 'Lea',country: 'Italy'}, {name: 'John',country: 'Italy'}]

推荐答案

您可以对其进行过滤并仅搜索搜索字符串中出现的一次.

You could filter it and search just for one occurence of the search string.

使用的方法:

  • Array#filter, just for filtering an array with conditions,

对象.键用于获取对象的所有属性名称,

Object.keys for getting all property names of the object,

Array#some 用于迭代键并在找到时退出循环,

Array#some for iterating the keys and exit loop if found,

String#toLowerCase 用于获取可比较的值,

String#toLowerCase for getting comparable values,

String#包括 用于检查两个字符串,如果一个包含另一个.

String#includes for checking two string, if one contains the other.

function filterByValue(array, string) {
    return array.filter(o =>
        Object.keys(o).some(k => o[k].toLowerCase().includes(string.toLowerCase())));
}

const arrayOfObject = [{ name: 'Paul', country: 'Canada', }, { name: 'Lea', country: 'Italy', }, { name: 'John', country: 'Italy' }];

console.log(filterByValue(arrayOfObject, 'lea')); // [{name: 'Lea', country: 'Italy'}]
console.log(filterByValue(arrayOfObject, 'ita')); // [{name: 'Lea', country: 'Italy'}, {name: 'John', country: 'Italy'}]

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

这篇关于任何属性都包含值的对象的过滤器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!

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