How to use JQuery's Ajax functionality to send a POST request

JQuery is a fast, simple, and flexible JavaScript library. It has many useful features, one of which is the ability to easily send Ajax requests and get return values. In this article, we will learn how to use JQuery's Ajax functionality to send a POST request and get the data returned.

Define POST request

First, we need to define the POST request we want to send. This can be done by creating an object that contains the data to be sent and the requested URL. For example, if we want to send a POST request named "data" and value "hello" to "/example.com/post", we can define it like this:

var data = {
  data: 'hello'
};

var url = '/example.com/post';

Send POST request

Next, we need to use JQuery's ajax function to send a POST request. We need to pass the data and URL to the ajax function using the following code:

$.ajax({
  url: url,
  method: 'POST',
  data: data,
  success: function(response) {
    console.log(response);
  }
});

First, we pass the URL as one of the parameters of the ajax function. We then specify the request type as POST, which is achieved by setting the "method" parameter to "POST". Next, we pass the data as one of the parameters of the ajax function, this is done by setting the "data" parameter to the data object we defined earlier. Finally, we define a callback function that is called after the request is successfully sent.

Processing the returned data

Once we successfully send the POST request, we need to process the returned data. This can be done by specifying a callback function in the ajax function. In the above code, we have defined a callback function named "success". This function will be called when the request returns successfully and will have access to the "response" data returned by the server. In this example, we are simply outputting the returned data as a log, but you can take other actions as needed:

success: function(response) {
  console.log(response);
}

Summary

In this article, we learned how to use JQuery Ajax functionality to send a POST request and get the data returned. We define the data and URL we want to send and then use an ajax function to send them as parameters. Finally, we handle the returned data, which is returned via the callback function after a successful request. JQuery's Ajax capabilities make sending POST requests simple, fast, and flexible.

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