JavaScript

• Object oriented support from ES6
• No type system available
• Runs on Browser
• Single thread by default
  • For multithreading web-worker can be used

Engine
V8 (Google/IE/Opera)	Spider Monkey (Safari)	Rhino engine (Mozilla)

Runtime Environment
Node	Deno	Electron

• ECMAScript feature enabled
  • JavaScript standardization community
  • 4 phases in ECMAScript process phase[4..1]
  • ESNext - Next version of ECMAScript
  • ES[1....8] or ECMAScript-20[12..20]

Compiler/Transpiler/Bundler

• SWC
• TypeScript
• Babel
• Webpack
• Rollup