- Language
Object
: 🖐️ usedFunction
: 🖐️ usedBoolean
: 🙋 explainedNumber
: 🙋 explainedBigInt
: 🎓 knownString
: 🙋 explainedSymbol
: 🎓 knownInfinity
: 🖐️ usedNaN
: 🖐️ usedundefined
: 🖐️ usednull
: 🖐️ usedthis
: 🖐️ usedinstanceof
: 🖐️ used...spread
: 🙋 explained...rest
: 🙋 explainedtypeof
: 🖐️ used- Destructuring: 🙋 explained
- Generators: 👂 heard
- Iterators: 🎓 known
- Async generator: 👂 heard
- Async iterator: 👂 heard
- Chaining: 🎓 known
- Optional chaining: 🎓 known
- IIFE: 🎓 known
- Async IIFE: 👂 heard
global
: 👂 heardglobalThis
: 👂 heardwindow
: 👂 heard- Getters and setters: 🖐️ used
__proto__
: 👂 heardprototype
: 🎓 known- Equality operators: 🖐️ used
- Logical operators: 🖐️ used
- Logical Assignment: 🖐️ used
- Bitwise operators: 🎓 known
- Ternary operator: 🖐️ used
void
: 🖐️ usedyield
: 👂 heardawait
: 🖐️ used- Template literal: 👂 heard
- Strict mode: 🖐️ used
- Hoisting: 🎓 known
delete
: 🖐️ usedin
: 🖐️ usedsuper
: 🎓 knowneval
: 🖐️ usedstatic
: 👂 heardNumber.parseInt
: 🖐️ usedNumber.parseFloat
: 🖐️ used- Property descriptors: 👂 heard
- Sealing properties
- Freezing properties
- Computed properties
- Instance class fields
- Static class fields: 👂 heard
- Private class fields: 🖐️ used
- Private class methods: 🖐️ used
- Statements
if
: 🙋 explainedwhile
: 🙋 explaineddo..while
: 🙋 explainedfor
: 🙋 explainedfor..in
: 🙋 explainedfor..of
: 🙋 explainedfor await
: 👂 heardthrow
: 🖐️ usedbreak
: 🙋 explainedcontinue
: 🙋 explainedimport
: 🖐️ usedexport
: 🖐️ usedlabel
: 👂 heardtry..catch
: 🖐️ usedswitch
: 🙋 explainedclass
: 🖐️ usedextends
: 🖐️ usedwith
: 👂 heardnew
: 🖐️ used
- Functions
- Arrow function: 🖐️ used
- Async function: 🖐️ used
- Function declaration: 🖐️ used
- Function expression: 🎓 known
- Default parameters: 🖐️ used
- Functional object: 👂 heard
Function.prototype.call
: 👂 heardFunction.prototype.bind
: 🎓 knownFunction.prototype.apply
: 👂 heardreturn
: 🖐️ used
- Data structures
Array
: 🖐️ usedMap
: 🖐️ usedSet
: 🖐️ usedWeakMap
: 🎓 knownWeakSet
: 🎓 known- Typed arrays: 👂 heard
- Mixins: 👂 heard
Object.assign
: 👂 heard
- Standard classes and namespaces
Proxy
: 👂 heardRegExp
: 👂 heardDate
: 🖐️ usedMath
: 🖐️ usedReflect
Error
: 🖐️ usedAtomics
JSON
: 🎓 knownWeakRef
FinalizationRegistry
Intl
Promise
: 🖐️ usedconsole
: 🖐️ used- Timers: 🖐️ used
- Infrastructure
- V8: 🖐️ used
- Node.js: 🖐️ used
- npm: 🖐️ used
- prettier: 🖐️ used
- MDN: 🖐️ used
- TC39