过滤javascript对象答案

【问题标题】：Filtering of javascript object过滤javascript对象
【发布时间】：2020-05-29 20:24:08
【问题描述】：

我的对象列表如下

{
  "ACCOUNT": "Accountant",
  "ART": "Artist/Entertainer",
  "BIZ": "Business Owner",
  "CIVIL": "Civil Servant",
  "CLERK": "Clerk/Executive",
  "CONSULT": "Consultant",
  "EDU": "Educationist",
  "ENGINEER": "Engineer",
  "FACTORY": "Factory Worker",
  "FARMER": "Farmer",
  "FINANCE": "Finance Professional",
  "FREELANCER": "Freelancer",
  "GM": "General Manager/Director",
  "GWORKER": "General Worker",
  "HOUSEWIFE": "Housewife",
  "MANAGER": "Manager",
  "OTHERS": "Others",
  "POLICE": "Police/Army/Fireman",
  "PROF": "Professional",
  "RETIREE": "Retiree",
  "SALES": "Salesman/Marketer",
  "TECH": "Technician",
  "UNEMPLOY": "Unemployed"
}

当用户键入特定字符时，我如何过滤对象并返回 obj。例如，当用户键入“A”时。只返回

  {
      "ACCOUNT": "Accountant",
      "ART": "Artist/Entertainer",
}

【问题讨论】：

你应该展示你试图做什么......

标签： javascript object filtering

【解决方案1】：

const List_X = 
  { ACCOUNT   : "Accountant"
  , ART       : "Artist/Entertainer"
  , BIZ       : "Business Owner"
  , CIVIL     : "Civil Servant"
  , CLERK     : "Clerk/Executive"
  , CONSULT   : "Consultant"
  , EDU       : "Educationist"
  , ENGINEER  : "Engineer"
  , FACTORY   : "Factory Worker"
  , FARMER    : "Farmer"
  , FINANCE   : "Finance Professional"
  , FREELANCER: "Freelancer"
  , GM        : "General Manager/Director"
  , GWORKER   : "General Worker"
  , HOUSEWIFE : "Housewife"
  , MANAGER   : "Manager"
  , OTHERS    : "Others"
  , POLICE    : "Police/Army/Fireman"
  , PROF      : "Professional"
  , RETIREE   : "Retiree"
  , SALES     : "Salesman/Marketer"
  , TECH      : "Technician"
  , UNEMPLOY  : "Unemployed"
  } 

let List_filter = Object
                    .keys(List_X)
                    .filter(k=>/^A/.test(k))
                    .reduce((a,c)=>{a[c]=List_X[c];return a},{})

console.log( List_filter )

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

【讨论】：