如何从Json获取数据

Question

I' currently learning AJAX technology.

In Chrome console when I type jsonObject.responseText, I get all data in the console, but when I do the same in my .js file to print that to the console (or HTML element) it says "undefined" in the console.

JSON object is from:

https://jsonplaceholder.typicode.com/users

Code in JavaScript:

var jsonObject = $.ajax({
url: "https://jsonplaceholder.typicode.com/users",
dataType: "json"
});
console.log(jsonObject.responseText);

Answer 1

You should access the response you are getting from the ajax call inside the success /done handler of the call.

$.ajax({
    url: "https://jsonplaceholder.typicode.com/users",
    dataType: "json"
    })
    .done(function(jsonObject){
       // Received response from the call. Now you can safely access it
       console.log(jsonObject);
   });

Here is a working jsbin

Callbacks specified in the done handler will be executed when the ajax call successfully receives a response from the server.