## JavaScript

- Language
  - `Object`
  - `Function`
  - `Boolean`
  - `Number`
  - `BigInt`
  - `String`
  - `Symbol`
  - `Infinity`
  - `NaN`
  - `undefined`
  - `null`
  - `this`
  - `instanceof`
  - `...spread`
  - `...rest`
  - `typeof`
  - Destructuring
  - Generators
  - Iterators
  - Async generator
  - Async iterator
  - Chaining
  - Optional chaining
  - IIFE
  - Async IIFE
  - `global`
  - `globalThis`
  - `window`
  - Getters and setters
  - `__proto__`
  - `prototype`
  - Equality operators
  - Logical operators
  - Logical Assignment
  - Bitwise operators
  - Ternary operator
  - `void`
  - `yield`
  - `await`
  - Template literal
  - Strict mode
  - Hoisting
  - `delete`
  - `in`
  - `super`
  - `eval`
  - `static`
  - `Number.parseInt`
  - `Number.parseFloat`
  - Property descriptors
  - Sealing properties
  - Freezing properties
  - Computed properties
  - Instance class fields
  - Static class fields
  - Private class fields
  - Private class methods
- Statements
  - `if`
  - `while`
  - `do..while`
  - `for`
  - `for..in`
  - `for..of`
  - `for await`
  - `throw`
  - `break`
  - `continue`
  - `import`
  - `export`
  - `label`
  - `try..catch`
  - `switch`
  - `class`
  - `extends`
  - `with`
  - `new`
- Functions
  - Arrow function
  - Async function
  - Function declaration
  - Function expression
  - Default parameters
  - Functional object
  - `Function.prototype.call`
  - `Function.prototype.bind`
  - `Function.prototype.apply`
  - `return`
- Data structures
  - `Array`
  - `Map`
  - `Set`
  - `WeakMap`
  - `WeakSet`
  - Typed arrays
  - Mixins
  - `Object.assign`
- Standard classes and namespaces
  - `Proxy`
  - `RegExp`
  - `Date`
  - `Math`
  - `Reflect`
  - `Error`
  - `Atomics`
  - `JSON`
  - `WeakRef`
  - `FinalizationRegistry`
  - `Intl`
  - `Promise`
  - `console`
  - Timers
- Infrastructure
  - V8
  - Node.js
  - npm
  - prettier
  - MDN
  - TC39