Web

Often using callbacks and loops, it happens that we get repeated value for one variable, generally the last one. For example if you try to call a function (callback) using an array inside a for loop, you will end up calling it with the same data. Consider this code:

Almost all web pages make use of HTTP requests to load dynamic content after they have loaded. It might be using some library or simply using the XMLHttpRequest. It is also popularly known as AJAX request. Here we will explore the vanilla JS way to perform the request.