Ponyfills are like polyfills but without overriding native APIs. Polyfills patch a piece of functionality so that older environments can support newer features whilst Ponyfills, on the other hand, provide functionality as standalone modules.
Promise
Map
WeakMap
Set
Symbol
RegExp
globalThis
BigInt
Number.isNaN
Number.isFinite
Number.isInteger
String.prototype.indexOf
String.prototype.trim
String.prototype.trimStart
String.prototype.trimEnd
String.prototype.replaceAll
Object.fromEntries
Object.entries
Object.keys
Object.values
Object.assign
Object.is
JSON
Array.from
Array.prototype.every
Array.prototype.find
Array.prototype.some
Array.prototype.flatMap
Array.prototype.map
Array.prototype.forEach
Array.prototype.includes
Array.prototype.indexOf
.Array.isArray
fetch
Blob
FormData
AbortController
PerformanceObserver
performance.now
console.table
Bluetooth
ResizeObserver
crypto
requestAnimationFrame
XMLHttpRequest