Hold off on finishing numerous ajax requests that may be executed simultaneously

Question

Hold off on finishing numerous ajax requests that may be executed simultaneously

Is there a way to ensure that three ajax calls are allowed to run concurrently, but have the browser wait until all of them have completed before continuing? Setting async as false for each call can be time-consuming since they then cannot run at the same time. Is there a solution that allows concurrent execution while still ensuring completion before moving on?

javascript ajax asynchronous

Answer 1

Answer №1

Following a successful execution, trigger the callback function:

$.ajax({
    success: function(){ trackAjax(); }
});

Within the callback function, keep track of the number of responses received.

var completedRequests = 0, totalRequests = 3;
function trackAjax() {
   completedRequests++;

   if (completedRequests == totalRequests) {
       /* Perform important tasks here or invoke another function */
   }
}

Answer 2

Following a successful execution, trigger the callback function:

$.ajax({
    success: function(){ trackAjax(); }
});

Within the callback function, keep track of the number of responses received.

var completedRequests = 0, totalRequests = 3;
function trackAjax() {
   completedRequests++;

   if (completedRequests == totalRequests) {
       /* Perform important tasks here or invoke another function */
   }
}

Answer 3

Answer №2

For those utilizing jQuery, consider exploring the $.when function. By using this method, you can specify a success callback that will be triggered once all requests have completed loading.

Answer 4

For those utilizing jQuery, consider exploring the $.when function. By using this method, you can specify a success callback that will be triggered once all requests have completed loading.

Answer 5

Answer №3

If you want to simplify working with asynchronous tasks, consider utilizing the promises pattern. For those using jQuery, the jQuery.when() method can be helpful. According to the documentation:

$.when( $.ajax( "/data1.php" ), $.ajax( "/data2.php" )).done(function( result1, result2 ) {
     //execute this code when both ajax requests are complete
});

Answer 6

If you want to simplify working with asynchronous tasks, consider utilizing the promises pattern. For those using jQuery, the jQuery.when() method can be helpful. According to the documentation:

$.when( $.ajax( "/data1.php" ), $.ajax( "/data2.php" )).done(function( result1, result2 ) {
     //execute this code when both ajax requests are complete
});

Answer 7

Answer №4

To simplify handling multiple AJAX requests, utilizing deferred objects is recommended as AJAX itself returns that object. For a detailed guide, please check out Pass in an array of Deferreds to $.when()

var deferreds = [
    $.ajax(),
    $.getScript(),
];
$.when.apply($, deferreds).done(function() {
    // All ajax requests have been successfully completed
});

Answer 8

To simplify handling multiple AJAX requests, utilizing deferred objects is recommended as AJAX itself returns that object. For a detailed guide, please check out Pass in an array of Deferreds to $.when()

var deferreds = [
    $.ajax(),
    $.getScript(),
];
$.when.apply($, deferreds).done(function() {
    // All ajax requests have been successfully completed
});

Hold off on finishing numerous ajax requests that may be executed simultaneously

Answer №1

Answer №2

Answer №3

Answer №4

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