JSON Tutorial For Beginners | What is JSON | Learning JSON with JavaScript

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

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

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Develop this one fundamental skill if you want to become a successful developer

Throughout my career, a multitude of people have asked me <em>what does it take to become a successful developer?</em>

Throughout my career, a multitude of people have asked me what does it take to become a successful developer?

It’s a common question newbies and those looking to switch careers often ask — mostly because they see the potential paycheck. There is also a Hollywood level of coolness attached to working with computers nowadays. Being a programmer or developer is akin to being a doctor or lawyer. There is job security.

But a lot of people who try to enter the profession don’t make it. So what is it that separates those who make it and those who don’t?

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JSON vs XML: How Do They Compare?

In this article, we will outline what’s going on, and what you need to know about JSON and XML.

JSON and XML are two human-readable text formats that have emerged as rivals over the years. XML’s purpose is storing and defining documents and data through the optional use of a schema. JSON was almost the exact opposite – a serialization format with requirements so simple they fit on the back of a credit card. But, when should you use one or the other? We have to take into account that XML and JSON have similarities and differences that can affect your application’s performance.

In this article, we will outline what’s going on, and what you need to know about JSON and XML.

Background

JavaScript caused a seismic shift in web development with the creation of Node (which is really server-side JavaScript). Everything from this point on got replaced with REST APIs and JSON. JSON became the most efficient data structure standard in web apps. Web 1.0 was hindered with parsing data structures and caused innovation to slow down, while Web 2.0 created an explosion in productivity and Moore’s Law kicked in. JavaScript, which was considered a dead language at one point, was revived and is now one of the most popular languages in 2019.

Comparing JSON and XML

Similarities:

Both are human readable.
Both are hierarchal with a values within values format.
Both can be parsed and used by a number of languages.

Differences:

JSON

Shorter
Quicker to parse
Uses arrays
Parsed by a standard JavaScript function
Data interchange format

XML

Needs an XML parser.
Longer to parse.
Doesn’t use Arrays!!

Which should I consider?

Everyone has their own opinion about JSON and XML. As a developer, I more or less stick to JSON in my projects unless an API requires XML parsing.

XML is still being used actively in web publishing to create interactive pages. It’s also used for searching the web, metadata and pervasive computing, which is another way to say wireless devices, like cell phones.

Depending on the type of application, it will vary based on what best fits your application to access information.

What’s going on

As applications and platforms evolved, efficiency and performance have been the status quo in priority. APIs evolved over the years to become leaner, and JSON has overtaken XML as the preferred format among developers and technology stacks.