Intl.RelativeTimeFormat()
const rtf = new Intl.RelativeTimeFormat('en'); rtf.format(3.14, 'second'); // → 'in 3.14 seconds' rtf.format(-15, 'minute'); // → '15 minutes ago'
formatToParts()
Element.requestFullscreen()
navigationUI
"auto"
"show"
"hide"
"persistent-storage"
navigator.storage.persisted()
navigator.permissions.query({name:"persistent-storage"})
linear-gradient(45deg, black 25%, black 50%, white 50%, white 75%)
linear-gradient(45deg, black 25% 50%, white 50% 75%)
'left'
'right'
'text-underline-position'
"omit"
"same-origin"
response.body.text()
ReadableStream
Response.Body
Response.Body.pipeThrough(new TextDecoderStream())
MediaElementAudioSourceNode
MediaStreamAudioSourceNode
MediaStreamAudioDestinationNode
AudioContext
OfflineAudioContext
:host()
:host-context()
::slotted()
speechSynthesis.speak()
importScripts()
`installed`
URL.createObjectURL()
MediaStream
srcObject
document.origin
self.origin