- Language
Object: ποΈ usedFunction: ποΈ usedBoolean: ποΈ usedNumber: ποΈ usedBigInt: ποΈ usedString: ποΈ usedSymbol: ποΈ usedInfinity: ποΈ usedNaN: ποΈ usedundefined: ποΈ usednull: ποΈ usedthis: ποΈ usedinstanceof: ποΈ used...spread: ποΈ used...rest: ποΈ usedtypeof: ποΈ used- Destructuring: ποΈ used
- Generators: π known
- Iterators: ποΈ used
- Async generator: π known
- Async iterator: π known
- Chaining: ποΈ used
- Optional chaining: ποΈ used
- IIFE: ποΈ used
- Async IIFE: ποΈ used
global: ποΈ usedglobalThis: ποΈ usedwindow: ποΈ used- Getters and setters: ποΈ used
__proto__: π knownprototype: π known- Equality operators: ποΈ used
- Logical operators u: ποΈ used
- Logical Assignment: ποΈ used
- Bitwise operators: ποΈ used
- Ternary operator: ποΈ used
void: ποΈ usedyield: ποΈ usedawait: ποΈ used- Template literal: ποΈ used
- Strict mode: π known
- Hoisting: ποΈ used
delete: ποΈ usedin: ποΈ usedsuper: ποΈ usedeval: ποΈ usedstatic: ποΈ usedNumber.parseInt: ποΈ usedNumber.parseFloat: ποΈ used- Property descriptors: π heard
- Sealing properties: π known
- Freezing properties: π known
- Computed properties: ποΈ used
- Instance class fields: ποΈ used
- Static class fields: ποΈ used
- Private class fields: ποΈ used
- Private class methods: ποΈ used
- Statements
if: ποΈ usedwhile: ποΈ useddo..while: ποΈ usedfor: ποΈ usedfor..in: ποΈ usedfor..of: ποΈ usedfor await: ποΈ usedthrow: ποΈ usedbreak: ποΈ usedcontinue: ποΈ usedimport: ποΈ usedexport: ποΈ usedlabel: π knowntry..catch: ποΈ usedswitch: ποΈ usedclass: ποΈ usedextends: ποΈ usedwith: π knownnew: ποΈ used
- Functions
- Arrow function: ποΈ used
- Async function: ποΈ used
- Function declaration: ποΈ used
- Function expression: ποΈ used
- Default parameters: ποΈ used
- Functional object: π heard
Function.prototype.call: ποΈ usedFunction.prototype.bind: ποΈ usedFunction.prototype.apply: ποΈ usedreturn: ποΈ used
- Data structures
Array: ποΈ usedMap: ποΈ usedSet: ποΈ usedWeakMap: π knownWeakSet: π known- Typed arrays: π heard
- Mixins: π heard
Object.assign: ποΈ used
- Standard classes and namespaces
Proxy: ποΈ usedRegExp: ποΈ usedDate: ποΈ usedMath: ποΈ usedReflectError: ποΈ usedAtomicsJSON: ποΈ usedWeakRefFinalizationRegistryIntlPromise: ποΈ usedconsole: ποΈ used- Timers: ποΈ used
- Infrastructure k
- V8: π known
- Node.js: ποΈ used
- npm: ποΈ used
- prettier: ποΈ used
- MDN: ποΈ used
- TC39: π known