Live Demo: ajax-post-request

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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>JavaScript Ajax POST Demo</title>
<script>
function postComment() {
    // Creating the XMLHttpRequest object
    let request = new XMLHttpRequest();
    
    // Instantiating the request object
    request.open("POST", "/examples/php/confirmation.php");
    
    // Defining event listener for readystatechange event
    request.onreadystatechange = function() {
        // Check if the request is compete and was successful
        if(this.readyState === 4 && this.status === 200) {
            // Inserting the response from server into an HTML element
            document.getElementById("result").innerHTML = this.responseText;
        }
    };
    
    // Retrieving the form data
    let myForm = document.getElementById("myForm");
    let formData = new FormData(myForm);

// Sending the request to the server
    request.send(formData);
}
</script>
</head>
<body>
    <form id="myForm">
        <label>Name:</label>
        <div><input type="text" name="name"></div>
        <br>
        <label>Comment:</label>
        <div><textarea name="comment">

Content of the result DIV box will be replaced by the server response

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