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JSON - Beginners Guide to learning JSON with JavaScript (Udemy.com)

Explore JSON and how JavaScript Objects can be used to access data within JSON data format and output to your web page

Created by: Laurence Svekis

Last updated November 2024

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What you will learn

  • Connect to APIs and retrieve JSON data
  • Parse JSON data from Strings
  • Be able to work with JavaScript Objects
  • Understand how JavaScript Arrays work
  • Create JSON object arrays

How it compares

Against the other 239 rated Udemy courses in JavaScript on CourseDuck:

  • Rating4.5 out of 5higher than 53% of them
  • Reviews1,734#66 of 240 by number of reviews
  • Length2.6 hoursshorter than 75% of them
  • Last updatedNovember 2024more recently than 63% of them

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Course Description

Guide to learning how to use JavaScript Objects and JSON data.  JSON is the most popular format for data exchange between applications.  If you are interested in connected to a web API chances are its JSON formatted.   Learn to use AJAX to connect and bring JSON data into your JavaScript!

This course shows you how to work with JSON formatted data, output content, loop JSON data, Parse JSON and a whole lot more.

JSON (JavaScript Object Notation) is a syntax for data.  JSON is easier to use than XML and human readable.   Most modern web APIs output data in JSON formats.  It's a lightweight data interchange format that is quickly becoming the default format for data exchange on internet today!  JSON is lightweight, language independent and easy to read and write.  JSON is better than XML and more popular!

Within the lessons of this course we will explore

  • JavaScript data types used to hold variables and how they work
  • JSON and how to write JSON data
  • How to add values into a JSON object
  • Accessing JSON data and bringing it into JavaScript
  • JavaScript JSON parse and stringify methods
  • Adding JSON to local storage
  • Retrieving back data within JSON formats, updating and working with JSON
  • Connecting to a web API using fetch
  • Retrieving JSON data from a web API and outputting the results into your web page
  • Iterating threw multiple results from an API
  • Google Spreadsheet data as JSON and how to practice retrieving data
  • All of the source code and resources are in included
  • Explore different methods of working with the JSON data stringify and parsing
  • How JavaScript objects can use Arrays to hold multiple items
  • How JavaScript arrays work and store data

Get started with JSON quickly 

Understanding the basics of JavaScript and how to create websites is a prerequisites to this course.  It covers working within JavaScript code to produce dynamic functionality.  Learning how to work with JSON is a key skill within modern web development.   JSON and APIs are everywhere, once you start working with them you will be amazed at what can be done with a few lines of code.

Taught by an instructor with over 18 years of real world web development experience.  Friendly support is always available within the Q&A section of this course.  I'm here to help you learn about JSON and ready to answer any questions you may have.  One course instructor who is also a web developer with the real world knowledge to help you learn.

Join now and bring some JSON data into you web applications today.

Everything you need to get started using JSON is included within this course..

Resources, source files and top links are also included.

Let's get ready to learn JSON and AJAX


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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

4.5

1,734 ratings on Udemy

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

By Michael Smith on 11/12/2025

This was a good match for me in that I am a beginner, and the training is at a comfortable pace and easy to follow.

By Anonymized User on 5/26/2025

This course provides a perfect overview and a wide range of ways on how the JSONs can be managed. The best thing are the numerous on hands examples of code and how to apply it.

By Anonymized User on 4/3/2023

This looks very interesting, but I wish I had knowledge in Java and Java script to be able to understand what arrays are and some of the terms mentioned therein. I will definitely look for courses in Java to get some foundational basics and then take my dev career to another level. Overall, this looks like a very awesome course.

By Diamond Brown on 3/29/2023

The instructor's instructions and explanations are very clear. I also like how he breaks the lessons down to the topic's foundation.

By Lee Harris on 1/2/2023

I wasn't following at first with how you got to the Console but once you explained it at the end of the video then it was good. so far having fun.

By R Ajay on 11/13/2022

I wanted a little more in depth knowledge on coding in JSON since I use JSON language for coding in my work. I was bit disappointed with the course covering in depth about Javascript and using JSON only for data storing.

By William Lucas on 8/3/2022

Instruction and lessons are outstanding. A minor annoyance is that cursor in the video is tiny and black. The background of the video is black. When the instructor is trying to point to the code he is talking about, I often have to stop the video to see where he is pointing.

By Paul Shepherd on 11/27/2020

Another Great Course from Laurence, cant believe just how good his tuition is Thorough , step by step and really good examples simple to follow Thank you Laurence , hope you and your family are all well Shep + Ali :)

By Bruce W Carter on 8/1/2020

A bit Fast for me but the instructor gave excellent explanations and samples for use.

By Kristopher Hassett on 7/11/2020

Only a few lessons in, but really enjoying this so far. Thanks!!

By Thor Odinsun on 6/24/2020

Great for a beginner!

By David P Cornett on 4/2/2020

Great course and material.

Showing 12 of 31 reviews

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Overall Score : 90 / 100