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