ECMAScript

Join the ECMAScript Track
ECMAScript is the standard that defines JavaScript, a language widely used in web development. It is updated regularly, requiring transpilation for code to be compatible with most browsers.

7 Mentors

Our mentors are friendly, experienced ECMAScript developers who will help teach you new techniques and tricks.

1,746 Students

Join hundreds of students who have enjoyed learning and improving their skills by taking this track.

97 Exercises

Hundreds of hours have gone into making these exercises fun, useful, and challenging to help you enjoy learning.

About ECMAScript

ECMAScript is the standard that defines JavaScript, the language that allows web pages to be dynamic. It is an interpreted language, which means that it doesn't need to be compiled by the programmer: instead the client (such as a web browser) will parse the code and turn it into code that their machine can run - suitable for creating dynamic websites that can run on any browser on any computer!

In addition to use in web pages with modern web browsers, and it can also be executed on servers where the NodeJS platform is installed where it can be used for creating a web server too.

"ECMAScript has grown to be one of the world’s most widely used general purpose programming languages. It is best known as the language embedded in web browsers but has also been widely adopted for server and embedded applications." —ECMA International Language Specification

Starting with the 6th edition (commonly known as ES2015 or ES6) in 2015, a new edition of the standard will be released each year. The 6th edition was a major update which brought many enhancements over ES5, including notably template strings, expressive arrow function syntax, and cleaner syntax for defining classes.

However, support in current browsers is incomplete, and often requires transpilation with a tool like Babel.

Note: This track supports the latest ECMAScript syntax via Babel and the babel-preset-env plugin, and new experimental features will be enabled with each release of the specification. Here, you will find code that not all browsers are able to run. For widely supported JavaScript based on the ES5 standard, you may be interested in the JavaScript track.

Join the ECMAScript track
class HelloWorld {
  hello() {
    return 'Hello, World!';
  }
}

export default HelloWorld;

Exercism is a great website

The reviews are incredibly helpful because they help me see things that I missed, learn about new ways and sometimes interesting discussions that can add a fun twist to maybe a simple problem.

Relaxed. Encouraging. Supportive.

Meet the ECMAScript Track Mentors

Once you join the ECMAScript language track, you will receive support and feedback from our team of mentors. Here are the bios of a few of the mentors of this track.

Aaditya Kulkarni https://github.com/aadityakulkarni

I am a Full stack web developer. I've written code in ECMAScript professionally, as well as use it for open source contribution.

Volkan Erdogan https://github.com/volcain-io

I'm self-employed and doing web & mobile apps (ECMAScript/JavaScript) & I'm in love with all the possibilities you get with that language.

Steven Atkinson https://github.com/mrstebo

I've been working on projects using ECMAScript for almost 5 years now as a full stack developer, and really like the added features. ECMAScript is a superb language to have under your belt.

Michael Anderson https://github.com/usufruct

ECMAScript is the hobo of the internet. It is also the train I took into the world of software years ago.

Nick Bell GoFan

I've been developing in Ruby for 6 years. We use ECMAScript heavily at GoFan, I am excited to be a mentor.

David Jones Website

Software engineer and a fan of many programming languages
Fun. Challenging. Interesting

Community-sourced ECMAScript Exercises

These are a few of the 96 exercises on the ECMAScript track. You can see all the exercises here.

Isbn Verifier
medium
medium
control flow conditionals
control flow loops
pattern recognition
regular expressions
Binary Search Tree
medium
medium
algorithms
control flow conditionals
control flow loops
recursion
Isogram
medium
easy
filtering
strings
Pythagorean Triplet
medium
medium
algorithms
control flow conditionals
control flow loops
integers
mathematics
Largest Series Product
medium
medium
control flow conditionals
control flow loops
exception handling
integers
mathematics
regular expressions
strings
Saddle Points
medium
medium
control flow conditionals
control flow loops
equality
exception handling
integers
mathematics
matrices
optional values
parsing

Get started with the ECMAScript track. As with everything on Exercism, it's 100% free!

Join the ECMAScript Track