ESX (e.g. ES5, ES6, ES10) refers to versions of JS. Every new version adds some new features. If you find a tutorial that teaches ES6, it'll still be broadly applicable to ES10, it might just turn out that there are better ways to do one or two of the things you learn. That being said, learning the "old way" will still make it much easier to learn the "new way." Answer from PPewt on reddit.com
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W3Schools
w3schools.com › js › js_es6.asp
JavaScript 2015 (ES6)
JS Examples JS HTML DOM JS HTML Input JS HTML Objects JS HTML Events JS Browser JS Editor JS Exercises JS Quiz JS Website JS Syllabus JS Study Plan JS Interview Prep JS Bootcamp JS Certificate ... The second major revision to JavaScript. ECMAScript ...
Discussions

Basic JS vs ES6
Hi. I’ve used JavaScript often but I have a question. I’ve started my curriculum on basic JS after completed the HTML curriculum and I have not started ES6 (or ECMAScript 2015) as my curriculum on this website. But what is the difference between basic JS and ES6? More on forum.freecodecamp.org
🌐 forum.freecodecamp.org
3
0
November 28, 2020
Is es6 completely useless?
I disregard a person's opinion as soon as they say never before something completely subjective. Sure, you should never put your hand on fire (unless your hand is freezing, I guess?). But never use es6 classes? Really? That's moronic. Now, your client has every right to ask you to write code in the way he wants. But if he has such tight specifications for code and didn't state them before you started to work on the project, then it's not your fault. More on reddit.com
🌐 r/node
67
13
July 21, 2017
Why doesn't everyone use strict mode in JavaScript?
ECMAScript and webpack modules are all forced into strict mode, so the majority of what you see implicitly is in strict mode. More on reddit.com
🌐 r/learnjavascript
15
56
September 7, 2020
Multiline html template in a javascript file
You install an extension such as this one: https://marketplace.visualstudio.com/items?itemName=Tobermory.es6-string-html More on reddit.com
🌐 r/vscode
2
8
June 24, 2019
People also ask

What does ES6+ mean in JavaScript?
ES6+ refers to ECMAScript 2015 and later versions of JavaScript that introduced modern language features such as classes, arrow functions, modules, promises, and more.
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sencha.com
sencha.com › home › blog › the ultimate guide to javascript es6+ features you must know
The Ultimate Guide to JavaScript ES6+ Features You Must Know
How does ES6+ help Ext JS development?
ES6+ helps Ext JS developers write cleaner, more concise, and more maintainable code, especially in utility functions, async workflows, data handling, and modular organization.
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sencha.com
sencha.com › home › blog › the ultimate guide to javascript es6+ features you must know
The Ultimate Guide to JavaScript ES6+ Features You Must Know
When should I use Map over an Object in JavaScript?
Use Map when you need to store key-value pairs with any data type as a key, and when you want to preserve the order of insertion. Objects are best for simple key-value pairs with strings as keys.
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jobaajlearnings.com
jobaajlearnings.com › home › blogs › web development › html, css & javascript basics › javascript es6 features every beginner should learn
JavaScript ES6 Features Every Beginner Should Learn| Jobaaj Learnings
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GeeksforGeeks
geeksforgeeks.org › javascript › introduction-to-es6
Introduction to ES6 - GeeksforGeeks
June 11, 2026 - Classes in javascript can be used to create new Objects with the help of a constructor, each class can only have one constructor inside it.
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JavaScript Tutorial
javascripttutorial.net › home › es6 tutorial
ES6 Tutorial
June 18, 2021 - To follow this ES6 tutorial, you should have a good knowledge of JavaScript up to ES5. let – declare block-scoped variables using the let keyword. let vs. var – understand the differences between let and var. const – define constants using the const keyword. Default function parameters – learn how to set the default value for parameters of a function. Rest parameter – introduce you to the rest parameter and how to use them effectively.
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Medium
medium.com › @shubham3480 › features-introduced-in-es6-e8b10bd93150
Features introduced in ES6. ES6 or the ECMAScript 2015 is the 6th… | by Shubham Gupta | Medium
September 11, 2023 - It brought several new features like, let and const keyword, rest and spread operators, template literals, classes, modules and many other enhancements to make JavaScript programming easier and more fun.
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Mimo
mimo.org › glossary › javascript › es6
JavaScript ES6: Usage and Examples
Become a full-stack developer. Learn HTML, CSS, JavaScript, and React as well as NodeJS, Express, and SQL ... Master the language of the web. Learn variables, functions, objects, and modern ES6+ features ... Instead of using var, ES6 introduced let and const for better variable scoping.
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Sencha
sencha.com › home › blog › the ultimate guide to javascript es6+ features you must know
The Ultimate Guide to JavaScript ES6+ Features You Must Know
May 21, 2026 - When developers say “modern JavaScript,” they usually mean features such as: ... These features have become standard tools in professional development. One of the first ES6 improvements most developers learn is the introduction of let and const.
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Talent500
talent500.com › blog › what-is-es6-javascript-guide
What is ES6 in JavaScript? A Comprehensive Guide to ECMAScript 2015
January 29, 2025 - It added new elements like block-lexical environment (let and const), module, template string, the ability to create promises for asynchronous programming, and the new data structures: Map and Set.
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Jobaaj Learnings
jobaajlearnings.com › home › blogs › web development › html, css & javascript basics › javascript es6 features every beginner should learn
JavaScript ES6 Features Every Beginner Should Learn| Jobaaj Learnings
October 30, 2025 - Learn about the most important ES6 features every JavaScript beginner should know. Explore how these new features improve your code’s efficiency and readability in 2025.
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DEV Community
dev.to › imranparthib › -javascript-es6-features-35di
# JavaScript ES6 Features - DEV Community
April 9, 2025 - These ES6 features greatly improve code readability, maintainability, and ease of use. ... Hi, I'm Imran Parthib! I'm passionate about exploring new ideas and concepts, and I love to learn new things. I find programming to be especially enjoyable and have experience in various languages lik ... #javascript #webdev #beginners #programming Embracing 2024: A Guide to Personal, Community, and Technological Contributions Introduction
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Medium
medium.com › @rohitkuwar › javascript-es6-features-every-developer-should-know-0ab1ce227430
JavaScript ES6 Features Every Developer Should Know | by Rohit Kuwar | Medium
August 12, 2025 - Here, ...numbers collects all arguments into a single array, which you can then manipulate. Before ES6, JavaScript didn’t have a formal class syntax, and you had to rely on constructor functions and prototypes for inheritance.
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Programiz
programiz.com › javascript › ES6
JavaScript ES6
This means, even if you don't pass the parameter for numB, it will take 5 by default. To learn more about default parameters, visit JavaScript Default Parameters. ES6 introduces a new way to write function and function expressions using => called the arrow function.
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Board Infinity
boardinfinity.com › blog › top-10-features-of-es6
Top 10 Features of ES6: A Comprehensive Guide
May 18, 2021 - The most useful es6 features combine syntax improvements with deeper runtime concepts: lexical scope, lexical this, structured modules, promises for asynchronous work, and iterable data processing.
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GitHub
github.com › lukehoban › es6features
GitHub - lukehoban/es6features: Overview of ECMAScript 6 features · GitHub
In ES6, built-ins like Array, Date and DOM Elements can be subclassed.
Author   lukehoban
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Mozilla
developer.mozilla.org › en-US › docs › Web › JavaScript
JavaScript | MDN
May 22, 2026 - JavaScript's dynamic capabilities include runtime object construction, variable parameter lists, function variables, dynamic script creation (via eval), object introspection (via for...in and Object utilities), and source-code recovery (JavaScript functions store their source text and can be retrieved through toString()).
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Medium
medium.com › @kevinmavani › javascript-es6-features-fe24ebef8bed
JavaScript ES6 Features. Unlock the Power of ES6: Explore the… | by Kevin Mavani | Medium
October 16, 2023 - ES6 introduces the new let keyword for declaring variables. Prior to ES6, the only way to declare a variable in JavaScript was the var keyword.
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freeCodeCamp
forum.freecodecamp.org › javascript
Basic JS vs ES6 - JavaScript - The freeCodeCamp Forum
November 28, 2020 - Hi. I’ve used JavaScript often but I have a question. I’ve started my curriculum on basic JS after completed the HTML curriculum and I have not started ES6 (or ECMAScript 2015) as my curriculum on this website. But what…
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freeCodeCamp
freecodecamp.org › news › write-less-do-more-with-javascript-es6-5fd4a8e50ee2
JavaScript ES6 — write less, do more
April 20, 2018 - By Said Hayani JavaScript ES6 brings new syntax and new awesome features to make your code more modern and more readable. It allows you to write less code and do more. ES6 introduces us to many great features like arrow functions, template strings, ...
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Codecademy
codecademy.com › article › javascript-versions
JavaScript Versions: ES6 and Before | Codecademy
To fully distinguish the difference ... you see ES6 or JavaScript ES6, it means that that version of JavaScript is following the specifications in the sixth edition of ECMAScript!...
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MDN Web Docs
developer.mozilla.org › en-US › docs › Web › JavaScript › Reference › Operators › Spread_syntax
Spread syntax (...) - JavaScript | MDN
May 22, 2026 - The spread (...) syntax allows an iterable, such as an array or string, to be expanded in places where zero or more arguments (for function calls) or elements (for array literals) are expected. In an object literal, the spread syntax enumerates the properties of an object and adds the key-value ...