使用.includes()遍历嵌套对象

时间:2018-07-10 09:55:05

标签: javascript javascript-objects nested-loops

我有一个这样的对象,例如:

const obj = 
{
    '140': {
        name: 'Jim',
        id: 140,
        link: 'http://a-website.com',
        hashKey: 'sdfsdgoihn21oi3hoh',
        customer_id: 13425
    },
    '183': {
        name: 'Foo',
        id: 183,
        link: 'http://a-website.com/abc',
        hashKey: 'xccxvq3z',
        customer_id: 1421
    },
    '143': {
        name: 'Bob',
        id: 143,
        link: 'http://a-website.com/123',
        hashKey: 'xcnbovisd132z',
        customer_id: 13651
    },
    '-40': {
        rgb: {
            b: 42,
            g: 114,
            r: 94
        },
        id: -40,
    },
    '-140': {
        rgb: {
            b: 77,
            g: 17,
            r: 55
        },
        done: true,
        id: -140
    }
}

我想遍历对象,并使用<String>.includes('o');查找任何包含字母'o'的对象名称,我尝试使用obj.forEach(fn)并遍历对象,检查name属性是否存在然后检查obj.name是否包含o,但是由于出现错误obj.forEach不是函数,所以我无法使用forEach。

是否有一种有效的方法?

1 个答案:

答案 0 :(得分:1)

对象不是数组,因此不能使用forEach。取而代之的是,遍历键/值/项(无论您需要什么),检查对象上是否存在.name属性并且它是一个字符串,如果存在,则使用.includes

const obj={'140':{name:'Jim',id:140,link:'http://a-website.com',hashKey:'sdfsdgoihn21oi3hoh',customer_id:13425},'183':{name:'Foo',id:183,link:'http://a-website.com/abc',hashKey:'xccxvq3z',customer_id:1421},'143':{name:'Bob',id:143,link:'http://a-website.com/123',hashKey:'xcnbovisd132z',customer_id:13651},'-40':{rgb:{b:42,g:114,r:94},id:-40,},'-140':{rgb:{b:77,g:17,r:55},done:!0,id:-140}};

console.log(
  Object.entries(obj).filter(([key, { name }]) => (
    typeof name === 'string' && name.includes('o')
  ))
);