主页 / 问题 / 880407
Accepted
Fox
Asked:2020-09-12 18:25:55 +0000 UTC2020-09-12 18:25:55 +0000 UTC

唯一（第一）按类别列出值

  • 772

我有一个列表，我正在获取值，但是我只需要从每个类别中获取第一个值，我如何在jQuery中编写一个条件以便控制台输出值：Title1 == Split，Title4 = = 已批准，Title7 == 无？

在此处输入图像描述 

var data = [{
    "Title": "Title1",
    "Category": "Split"
}, {
    "Title": "Title2",
    "Category": "Split"
}, {
    "Title": "Title3",
    "Category": "Split"
}, {
    "Title": "Title4",
    "Category": "Aproved"
}, {
    "Title": "Title5",
    "Category": "Aproved"
}, {
    "Title": "Title6",
    "Category": "Aproved"
}, {
    "Title": "Title7",
    "Category": "None"
}, {
    "Title": "Title8",
    "Category": "None"
}, {
    "Title": "Title9",
    "Category": "None"
}, {
    "Title": "Title10",
    "Category": "None"
}];

jquery

1 个回答

  1. Best Answer

    reduce为您的 json解决方案

    var data = [{"Title":"Title1","Category":"Split"},{"Title":"Title2","Category":"Split"},{"Title":"Title3","Category":"Split"},{"Title":"Title4","Category":"Aproved"},{"Title":"Title5","Category":"Aproved"},{"Title":"Title6","Category":"Aproved"},{"Title":"Title7","Category":"None"},{"Title":"Title8","Category":"None"},{"Title":"Title9","Category":"None"},{"Title":"Title10","Category":"None"}];

var result = data.reduce( (r, v) => { 
                      var c = v.Category;
                      if( !(c in r)) r[c]  = v.Title;
                      return r;
                  }, {});
                             
console.log(result)                             ;

    • 1

相关问题