- Language
- Object 🖐 used
- this 🖐 used
- arrow function 🖐 used
- async function 👂 heard
- call 👂 heard
- bind 👂 heard
- apply 🎓 known
- instanceof 🎓 known
- ...spread 👂 heard
- ...rest
- typeof 🖐 used
- destructuring
- generator 👂 heard
- iterator 🎓 known
- async generator 👂 heard
- async iterator 👂 heard
- chaining 👂 heard
- optional chaining
- IIFE
- global
- globalThis
- window 🖐 used
- getters and setters
- proto
- prototype 👂 heard
- equality operators 🖐 used
- logical operators 🖐 used
- bitwise operators 🖐 used
- ternary operator 🖐 used
- void 🖐 used
- yield
- await
- template literal🖐 used
- strict mode 🖐 used
- delete 🖐 used
- in 🖐 used
- super
- Symbol 🖐 used
- Reflect
- Statements
- if 🖐 used
- while 🖐 used
- do..while 🖐 used
- for 🖐 used
- for..in 🖐 used
- for..of 🖐 used
- for await
- throw 🖐 used
- break 🖐 used
- continue 🖐 used
- import 🖐 used
- export 🖐 used
- label 👂 heard
- try..catch
- switch 🖐 used
- class 🎓 known
- new Error 👂 heard
- with 👂 heard
- Functions
- function declaration 🖐 used
- function expression 🖐 used
- return 🖐 used
- default parameters 🎓 known
- functional object 🎓 known
- Data structures
- Array 🖐 used
- mixin 👂 heard
- extend 👂 heard
- typed arrays
- Map 🖐 used
- Set 🖐 used
- undefined 🖐 used
- null 🖐 used
- Proxy 👂 heard
- weak collections
- timers 👂 heard
- EventEmitter
- RegExp
- Date 👂 heard
- BigInt🖐 used
- Infrastructure
- V8👂 heard
- Node.js 🖐 used
- npm 🖐 used
- prettier 🖐 used
- MDN 🎓 known