Jan 23, 2019

What Is AJAX?

AJAX programming language lets websites run asynchronous requests. With asynchronous requests, a series of queries run separately from the flow of the main program. Learning AJAX is an intermediate skill for programmers, so taking a course like Intro to AJAX from the Udacity Catalog is a convenient way to get started. An example of what AJAX is used for is an app that lets people search a variety of information sources about a single location, and you get the chance to build an app like that in the Udacity course.

AJAX Web Design

AJAX is an acronym that stands for Asynchronous JavaScript and XML. It isn't just one programming language; it's actually a series of technologies that are grouped into one program that's used in building modern web applications. When AJAX is used, the browser, which is also called a client, communicates with web servers that are requesting data. The data is then processed from the response that the server or servers give. Changes occur on the page based on the new data that was retrieved, all without the need to completely reload the page. In the Intro to AJAX course from Udacity, you learn how to use jQuery's AJAX function to use JavaScript for making asynchronous requests. That may not make a lot of sense if you're just learning about AJAX. However, taking an online course not only gives you a strong understanding of what this all means, but it also gives you the skills to manage this powerful web developing tool.

AJAX and Web Server Interaction

The asynchronous nature of AJAX lets you know that the web server doesn't freeze up when a client, which means a web browser, requests new data. The asynchronous functionality allows the user to keep navigating around the web page or pages, and the new data loads without disturbing the current web page that someone's using. When you've mastered AJAX, if you want to continue in the field and earn certification as a developer, Udacity's Front-End Web Developer Nanodegree program is the next step.

The Front-End Web Developer Nanodegree program is offered in cooperation with AT&T, Google, and GitHub. It's set up as four-month course, so you can reach your goal of becoming a web developer in a fairly short time. According to the Bureau of Labor Statistics, web developers make an average of $32.69 per hour or about $68,000 per year. The field is growing much faster than average with a growth rate of 15 percent between 2016 and 2026, and it's suited to people who want to work for themselves and those who want to find positions developing websites for different companies.