AJAX (Asyncronous JavaScript and XML)

AJAX stands for Asynchronous JAvascript and XML in AJAX, we can make requests tyo change the web page contents by small parts and not the complete web page. The class is XMLHTTPRequest

let xml = new XMLHttpRequest();
xml.onreadystatechange = function() {
if(this.readyState  == 4 && this.status == 200) {
	document.getElemntById("demo").innerHTML = this.responseText;
}
xml.open("GET","ajax_info.txt",true);
xml.send();
}

To make an ajax call using jQuery, we can write $.ajax({ data: $(document.forms[0]).serialize(), url: "http://www.w3schools.com", method: "GET" }). success(function(response) { $("#result").html(response); }). error(function(error) { $("#result").html(error); });