Extracting information from the responseText of an XMLHttpRequest

Question

Extracting information from the responseText of an XMLHttpRequest

Using AJAX, I am retrieving some data that I need to manipulate after the AJAX call completes. However, I am facing an issue where I can't seem to manipulate the response. Here is the code snippet:

function testAjax() {           
        direc = "controller.php";
        return $.ajax({url: direc});            
        }           
        var obj = testAjax(); 
        console.log(obj);           
        console.log(obj.responseText);

The console.log(obj) output is as follows:

 XMLHttpRequest { readyState=1,  timeout=0,  withCredentials=false,  more...}

Response:

"[{"CLICREDIT_Cod":"1002","CLICREDIT_Credit":"2000","CLICREDIT_FlagEstad":"1"}]"

responseText:

"[{"CLICREDIT_Cod":"1002","CLICREDIT_Credit":"2000","CLICREDIT_FlagEstad":"1"}]"

The console.log(obj.responseText) returns an empty string.

I have attempted methods like JSON.parse to manipulate the data, but none seem to work. Any assistance in this matter would be greatly appreciated. Thank you.

javascript ajax xmlhttprequest

Answer 1

Answer №1

When working with asynchronous ajax requests, remember to utilize the "then" method:

promise.then( successCallback, failureCallback )

function executeAjax() {
  endpoint = "backend.php";
  return $.ajax({
    url: endpoint
  });
}
var request = executeAjax();

request.then(function(response) {
  console.log(response);
}, function(xhr, options, error) {
  alert(xhr.status);
  alert(error);
});

Answer 2

When working with asynchronous ajax requests, remember to utilize the "then" method:

promise.then( successCallback, failureCallback )

function executeAjax() {
  endpoint = "backend.php";
  return $.ajax({
    url: endpoint
  });
}
var request = executeAjax();

request.then(function(response) {
  console.log(response);
}, function(xhr, options, error) {
  alert(xhr.status);
  alert(error);
});

Answer 3

Answer №2

To handle asynchronous tasks, make sure to implement the .done() function in your code. Check out an example in the provided link.

Answer 4

To handle asynchronous tasks, make sure to implement the .done() function in your code. Check out an example in the provided link.

Answer 5

Answer №3

To ensure the browser does not wait for a response and continues with code execution, you can utilize a callback function after the success event. This way, when the browser receives the result, the callback function will be triggered.

$.ajax({url: direc, success: executeAction});
function executeAction(data){
//perform actions using data
}

Answer 6

To ensure the browser does not wait for a response and continues with code execution, you can utilize a callback function after the success event. This way, when the browser receives the result, the callback function will be triggered.

$.ajax({url: direc, success: executeAction});
function executeAction(data){
//perform actions using data
}

Answer 7

Answer №4

To retrieve the response of the page you requested, simply use the success() function.

 var pageResponse={};
 $.ajax({
    url: 'controller.php',
    type:"POST",
    success: function(data){
        pageResponse = data;
    }
 });

Answer 8

To retrieve the response of the page you requested, simply use the success() function.

 var pageResponse={};
 $.ajax({
    url: 'controller.php',
    type:"POST",
    success: function(data){
        pageResponse = data;
    }
 });

Extracting information from the responseText of an XMLHttpRequest

Answer №1

Answer №2

Answer №3

Answer №4

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