使用AJAX从API获取数据

Question

I am trying to get data from API and display them using AJAX I have this code

 $(document).ready(function(){  
          $('.show').click(function(){     
          $.ajax({
           url: 'url',
           dataType: 'json',
           success: function(data) {
              var items = [];
              $.each(data, function(key, val) {

                items.push('<li id="' + key + '">' + val + '</li>');    

              });

              $('<ul/>', {
                 'class': 'interest-list',
                 html: items.join('')
              }).appendTo('body');

           },
          statusCode: {
             404: function() {
               alert('There was a problem with the server.  Try again soon!');
             }
           }
    });
    });
    });

I have this result:

[object Object],[object Object],[object Object],[object Object],

What must I fix in my code?

Answer 1

$.each iterates over the array, and key was the index of the array, and val was the entire object

You could change this line of code

items.push('<li id="' + key + '">' + val + '</li>');

to

var key = Object.keys(val)[0];
items.push('<li id="' + key + '">' + val[key] + "</li>"); 

to just get the first key directly. Here is the documentation for Object.keys .

Answer 2

First of all, you'd better add the type:'GET' field to define what kind of call are you doing. Then you can use var json = JSON.parse(data) to read all the incoming data from data like this:

var time = json['foo'];

or if you have an array:

var time = json[index]['foo'];

you can find more details here https://www.w3schools.com/js/js_json_parse.asp and here https://developer.mozilla.org/it/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse