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