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Introduction to JavaScript Object Notation (JSON)

4.6 Filled star Filled star Filled star Filled star Half star
Based on 978 ratings
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Marie Taylor

JSON has become a widely accepted and popular format for data due to it’s platform neutral nature, lightweight format, and it’s ability to convert directly to native JavaScript Objects. JSON is being used everywhere from Web APIs, to noSQL databases, to server side language libraries and client side frameworks.

This course will also address security concerns with JSON, so you can use JSON in your own applications with confidence.

This course will give you not just an understanding of JSON syntax, but and understanding the role JSON is currently playing in the web today.

Read more

JSON has become a widely accepted and popular format for data due to it’s platform neutral nature, lightweight format, and it’s ability to convert directly to native JavaScript Objects. JSON is being used everywhere from Web APIs, to noSQL databases, to server side language libraries and client side frameworks.

This course will also address security concerns with JSON, so you can use JSON in your own applications with confidence.

This course will give you not just an understanding of JSON syntax, but and understanding the role JSON is currently playing in the web today.

In Web Development there are a lot of buzzwords buzzing like:

  • JSON Web APIs
  • Single Page Applications
  • Client Side Model-View-Controller (or MVC)
  • NoSQL Databases

Join me, Marie Taylor, and learn JSON today.

Enroll now

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What's inside

Learning objectives

  • A handout with key terms and key points for each course section
  • A quiz at the end of each section that tests your understanding of important json concepts, followed by a final exam at the end of the course.
  • By the end of the course, you will be able to use json in your own applications with skill and confidence.

Syllabus

Introduction

This lecture will introduce you to JSON and set the stage for your understanding of JSON.

This handout provides key terms and key points from the lectures in this course section.

Read more

This quiz will assess your understanding of this section of the course.

This lecture will introduce you to the basics of JSON syntax.

This Quiz will test your understanding of JSON syntax.

This lecture will give you an understanding of the JSON data types: string, number, boolean and null.

This lecture will cover the JSON Object data type.

This lecture will give you an understanding of the JSON array data type.

This lecture will provide you with an understanding of the CSRF security concern with JSON, and measures you can take in your projects.

This lecture will provide you with an understanding of the injection attack security concern with JSON, and measures you can take in your projects.

This handout provides key terms and key points from the lectures in this course section.

This lecture will introduce you to Web APIs, the JavaScript XmlHttpRequest Object and how the XmlHttpRequest object works with RESTful JSON APIs.

This handout provides key terms and key points from the lectures in this course section. Also available is a download of the starting example and the finished product for the weather app, and a supplementary example showing an asynchronous version of the example shown in the lecture.

This lecture will give you a high level overview with JSON's role in client side frameworks.

This handout provides key terms and key points from the lectures in this course section. Also, there is a download available for the jQuery weather map example.

This lecture will give you an overview of the role JSON plays in NoSQL database.

This lecture will give you an overview of the role that JSON plays with Server Side Framework Libraries.

This lecture concludes this course.

Traffic lights

Read about what's good
what should give you pause
and possible dealbreakers
Covers JSON's role in modern web development, including frameworks, APIs, and databases
Provides a solid foundation for understanding JSON syntax and its applications
Emphasizes security concerns related to JSON and offers mitigation strategies
Includes quizzes and a final exam to assess understanding and reinforce concepts
Taught by Marie Taylor, an experienced instructor in web development

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Reviews summary

Foundational json for web development

According to students, this course offers a clear and concise introduction to JSON, making complex concepts easy to grasp for beginners. Learners particularly appreciate the practical overview of JSON's role in web APIs and frameworks, and the inclusion of security concerns which is often overlooked in similar introductory materials. While providing a solid foundation for understanding JSON's place in modern web applications, some learners with prior experience might find the pace slow or the depth limited for more advanced topics. The syllabus is well-structured with quizzes and handouts to reinforce learning, though a few found the use of older API examples like XMLHttpRequest less current.
Features clear handouts, quizzes, and a logical progression of topics.
"The quizzes at the end of each section really helped me check my understanding."
"I found the handouts with key terms very useful for reviewing the material."
"The course structure flows logically from basics to more advanced concepts."
Uniquely addresses important security concerns related to JSON usage.
"I appreciated the lectures on CSRF and injection attacks; it added significant value."
"Learning about JSON security gave me confidence to use it in my own projects."
"Most intro courses skip security, so this part was a major plus for me."
Highlights JSON's critical role in modern web development and APIs.
"I now understand how JSON fits into web APIs and client-side frameworks."
"The sections on XMLHttpRequest and Web APIs were highly relevant to my work."
"It connected JSON concepts directly to real-world applications in server-side libraries."
Offers a highly accessible and clear introduction to JSON essentials.
"This course provided a really clear explanation of JSON syntax and data types for me."
"I finally grasped JSON's core concepts; the examples were super easy to follow."
"It's great for beginners, laying down a solid foundation without being overwhelming."
Uses XMLHttpRequest, which some learners might find less current.
"While useful, the reliance on XMLHttpRequest felt a bit dated; I prefer `fetch`."
"The examples use older JS practices, which might not align with modern web dev."
"I wish it included more modern JavaScript asynchronous patterns like async/await."
Perfectly paced for newcomers, potentially basic for experienced coders.
"As a complete beginner to JSON, the pace felt just right for me."
"If you already know some JavaScript, you might find the early sections a bit slow."
"I was hoping for more advanced topics or complex projects, but it's a good start."

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Introduction to JavaScript Object Notation (JSON) with these activities:
JSON Resources Compilation
Gather and organize a collection of useful JSON tools, libraries, and documentation for future reference.
Show steps
  • Identify relevant JSON resources
  • Categorize and organize the resources
  • Create a shareable document or repository
Mentor a Junior Developer on JSON
Share your knowledge and experience by providing guidance and support to a junior developer learning JSON.
Show steps
  • Identify a mentee who wants to learn JSON
  • Establish a regular communication channel
  • Provide guidance on JSON concepts and best practices
Practice JSON Syntax
Practice writing, parsing, and validating JSON data to solidify foundational understanding of its syntax.
Show steps
  • Create a JSON document with valid syntax
  • Parse a JSON document into a JavaScript object
  • Validate a JSON document against a JSON schema
Five other activities
Expand to see all activities and additional details
Show all eight activities
Handle JSON Security Concerns
Complete practice exercises on preventing JSON-related security vulnerabilities, such as CSRF and injection attacks.
Browse courses on Cross-Site Scripting
Show steps
  • Identify potential security threats related to JSON
  • Implement measures to mitigate CSRF attacks
  • Implement measures to prevent injection attacks
Write a Blog Post on JSON Best Practices
Write a blog post that shares insights and recommendations for effective use of JSON in various applications.
Browse courses on Data Management
Show steps
  • Research and gather information on JSON best practices
  • Organize and outline the content
  • Write and edit the blog post
Build a JSON API
Follow a tutorial to build a small JSON API using a server-side language and framework to reinforce practical application of JSON.
Browse courses on Web APIs
Show steps
  • Set up a server-side environment
  • Create a JSON API endpoint
  • Test the API using HTTP requests
Design a JSON Database Schema
Design a JSON database schema for a specific data set, considering data types, relationships, and performance.
Browse courses on Database Design
Show steps
  • Define the purpose and scope of the database
  • Identify and model the entities and their relationships
  • Create a JSON schema that represents the data model
Participate in a JSON Coding Challenge
Engage in a JSON coding challenge to test your skills and knowledge in a competitive environment.
Browse courses on Data Manipulation
Show steps
  • Find and register for a relevant JSON coding challenge
  • Study and practice JSON coding techniques
  • Develop and submit your solutions

Career center

Learners who complete Introduction to JavaScript Object Notation (JSON) will develop knowledge and skills that may be useful to these careers:

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Course image
Rating
4.6 Filled star Filled star Filled star Filled star Half star
Effort
1.5 total hours
Via
Udemy
Instructor
Marie Taylor
Language
English
Traffic lights
Read about what's good
what should give you pause
and possible dealbreakers
Covers JSON's role in modern web development, including frameworks, APIs, and databases
Provides a solid foundation for understanding JSON syntax and its applications
Emphasizes security concerns related to JSON and offers mitigation strategies
Includes quizzes and a final exam to assess understanding and reinforce concepts
Taught by Marie Taylor, an experienced instructor in web development
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