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JavaScript AJAX XHR for beginners (Udemy.com)

Explore JavaScript AJAX how to connect to web APIs retrieve JSON data to output in your web application using JavaScript

Created by: Laurence Svekis

Last updated November 2024

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What you will learn

  • Use AJAX to get JSON data into their web pages
  • Use XHR requests to connect to servers and APIs
  • Explore how to connect to APIs

How it compares

Against the other 518 rated Udemy courses in Software Development on CourseDuck:

  • Rating4.4 out of 5higher than 28% of them
  • Reviews135#398 of 519 by number of reviews
  • Length2 hoursshorter than 89% of them
  • Last updatedNovember 2024earlier than 63% of them

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Course Description

Welcome to our introductory course for using AJAX - Asynchronous JavaScript And XML with JavaScript

Explore how you can use XMLHttpRequest to connect to web APIs to retrieve JSON data into your web application.  Use JavaScript to send requests, receive response content and use the response data to output into the html. 

This course covers how to make AJAX requests using the XMLHttpRequest within JavaScript.  JavaScript code knowledge is a prerequisite for the course.  Scope of this course is focused on AJAX 

Course Covers

  • Explore what XHR is and how it works

  • JavaScript Objects and how it relates to JSON data

  • Learn how to use JavaScript Object data setting and updating

  • How to save JSON and lint JSON to validate JSON data

  • Loop through content within JavaScript Arrays Objects and output content

  • What JavaScript AJAX readystate is

  • Use response data

  • Use JSON parse and stringify to convert data objects and strings

  • Explore how to use JSON data

  • Connecting to web APIs

  • Practice AJAX

You'll get friendly support in the Q&A area and all the source code available for download. 

This Offer Won't Last Forever

You will be amazed at how easy it can be to do some much. 
Go ahead and hit that "take this course" button to start learning the AJAX Today.  

Taught by an instructor with over 20 years of web development experience, ready to help you learn and answer any questions you may have.

What are you waiting join now to start learning AJAX, you have nothing to lose.

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Instructor Details

Laurence Svekis

Hi, I’m Laurence Svekis, and I’m here to help you learn smarter, build real skills, and confidently use AI and modern tools to create amazing things.

I’m a Google Developer Expert (GDE), international speaker, author, and educator specializing in AI-powered learning, Google Workspace automation, and practical development with Google Apps Script and JavaScript. I’ve been teaching online since 2002 and have helped over two million students worldwide develop real-world skills through hands-on courses, books, and workshops.

My passion is learning with AI—using AI not as a shortcut, but as a powerful learning partner. I focus on helping learners understand how things work, how to apply AI responsibly, and how to build tools that solve real problems. Many of my courses explore how AI can act as a tutor, assistant, or productivity booster inside everyday tools like Google Docs, Sheets, and Workspace.

I’m especially known for:

Google Apps Script & Google Workspace automation

Building AI-powered assistants and learning tools

JavaScript for real-world applications

Using AI to improve learning, productivity, and workflows

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Reviews

4.4

135 ratings on Udemy

Select a bar to show only those reviews.Select the bar again to show every rating.

By Charek Chen on 7/8/2024

Section 1 good but section 2 starting with lesson 22 jumps straight into Google/youtube api services. Could have done something like comparing fetch vs xmlhttprequest or handling request errors, issues etc.

By Anonymized User on 4/5/2023

Tutorial sencillo para enteder el concepto de AJAX.

By Darren Mountcastle on 2/10/2023

Very informative and doesn't make any assumptions about prior knowledge

By Julio Vega on 11/10/2021

I could not get passed the "has been blocked by CORS policy." I felt like from there I couldn't move on with the course. Instructor did not address the potential for this issue.

By Forrest Skinner on 6/14/2021

New to the javaScript world. Learning new ideas and exploring programming on the net.

By Paul Shepherd on 12/10/2020

Another Great Course By Laurence !!! thanks Laurence

By Kevin Capule on 10/28/2019

Laurence is great at breaking things down in a way that the concepts really made sense. I was very happy with the course and will definitely be using it as a reference in the future.

By Jamila Guftar on 3/2/2019

Wonderful and to the point content. Helpful for beginners who want to learn about ajax requests.

By Chris Willier on 12/3/2018

Great course for beginners to learn XMLHttpRequests and to connect to API's and output to web page. Was good for me to reinforce what i taught myself about XHR.

By Nguyen Trang on 11/10/2018

It's very helpful for a absolute beginner like me!

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Read all 135 reviews on Udemy

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Overall Score : 88 / 100