Home >Web Front-end >JS Tutorial >How Can I Make jQuery Ajax Requests Synchronous to Control Widget Creation?

How Can I Make jQuery Ajax Requests Synchronous to Control Widget Creation?

Patricia Arquette
Patricia ArquetteOriginal
2025-01-03 18:29:40772browse

How Can I Make jQuery Ajax Requests Synchronous to Control Widget Creation?

Synchronous Ajax Requests with jQuery

In this scenario, a JavaScript widget's beforecreate function needs to prevent item creation based on an Ajax response. However, jQuery's default Ajax requests are asynchronous.

The Solution

To make the Ajax request synchronous, specify the async option to be false in the jQuery $.ajax function. This ensures that the callback is executed before the mother function proceeds.

Modified Code

beforecreate: function (node, targetNode, type, to) {
    jQuery.ajax({
        url: 'http://example.com/catalog/create/' + targetNode.id + '?name=' + encode(to.inp[0].value),
        success: function (result) {
            if (result.isOk == false) alert(result.message);
        },
        async: false
    });
}

How it Works

By setting async to false, jQuery performs a synchronous Ajax request, meaning the callback is called immediately after the server responds. This allows the callback to set the necessary data before the beforecreate function continues, providing the desired functionality of preventing item creation based on the Ajax response.

The above is the detailed content of How Can I Make jQuery Ajax Requests Synchronous to Control Widget Creation?. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn