JavaScript ES6+ Features Every Developer Should Know
Arrow functions, destructuring, spread, template literals, modules, and let/const — modern JavaScript essentials.
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ES6+ Features You Use Every Day
ES6 (2015) and later releases transformed JavaScript into a modern language. If you're still using var and function-only syntax, you're missing tools every codebase expects.
Why JavaScript ES6 Matters
Arrow functions, destructuring, and modules are not optional syntax — they're in every npm package and framework codebase.
const/let block scoping prevents hoisting bugs; destructuring simplifies API response handling in a single line.
JavaScript ES6 — Key Ideas You Must Know
- let and const block scoping
- Arrow functions and lexical this
- Destructuring arrays and objects
- Spread ... and rest parameters
- Template literals and modules import/export
Practice JavaScript ES6 with Free Lessons
Work through JavaScript syntax lessons on Sturdee from variables through modules.
Tip: Free interactive lesson: /tutorials/javascript — practice JavaScript ES6 with runnable code on Sturdee.
JavaScript ES6+ Features Every Developer Should Know — FAQ
Frequently Asked Questions
Should I still learn var?+
Recognize it in legacy code. Use const by default and let when reassigning.
Continue learning interactively
Free tutorial: /tutorials/javascript →