フロントエンド頻出2
問題文
ふりがな非表示
ふりがな表示
(is)
is
(keyof)
keyof
(in)
in
(of)
of
(true)
true
(false)
false
(null)
null
(undefined)
undefined
(Object.keys)
Object.keys
(Object.values)
Object.values
(Object.entries)
Object.entries
(JSON.stringify)
JSON.stringify
(JSON.parse)
JSON.parse
(setTimeout)
setTimeout
(setInterval)
setInterval
(Math.floor)
Math.floor
(Math.random)
Math.random
(Date.now)
Date.now
(document.querySelector)
document.querySelector
(addEventListener)
addEventListener
など
(process.env)
process.env
(export default)
export default
(Awaited)
Awaited
(from)
from
(as const)
as const
(fetch)
fetch
(then)
then
(Promise.all)
Promise.all
(Promise.resolve)
Promise.resolve
(Promise.reject)
Promise.reject
(document.getElementById)
document.getElementById
(window.location)
window.location
(localStorage.getItem)
localStorage.getItem
(localStorage.setItem)
localStorage.setItem
(Event)
Event
(MouseEvent)
MouseEvent
(KeyboardEvent)
KeyboardEvent
(replace)
replace
(replaceAll)
replaceAll
(substring)
substring
(toLowerCase)
toLowerCase
(toUpperCase)
toUpperCase
(trim)
trim
(startsWith)
startsWith
(endsWith)
endsWith
(parseInt)
parseInt
(parseFloat)
parseFloat
(Number.isNaN)
Number.isNaN
(Number.isInteger)
Number.isInteger
(toFixed)
toFixed
(Math.ceil)
Math.ceil
(Math.round)
Math.round
(Math.max)
Math.max
(Math.min)
Math.min
(Math.abs)
Math.abs
(RegExp)
RegExp
(test)
test
(match)
match
(delete)
delete
(continue)
continue
(yield)
yield
(get)
get
(set)
set
(debugger)
debugger
(useState)
useState
(useEffect)
useEffect
(useCallback)
useCallback
(useMemo)
useMemo
(useRef)
useRef
(React.FC)
React.FC
(React.ReactNode)
React.ReactNode
(Readonly)
Readonly
(ConstructorParameters)
ConstructorParameters
(URLSearchParams)
URLSearchParams
(FormData)
FormData
(bortController)
bortController
(AbortSignal)
AbortSignal
(Blob)
Blob
(File)
File
(ReadableStream)
ReadableStream
(WritableStream)
WritableStream
(TextEncoder)
TextEncoder
(TextDecoder)
TextDecoder
(Proxy)
Proxy
(Reflect)
Reflect
(Symbol)
Symbol
(BigInt)
BigInt
(Map)
Map
(Set)
Set
(WeakMap)
WeakMap
(WeakSet)
WeakSet
(CustomEvent)
CustomEvent
(IntersectionObserver)
IntersectionObserver
(ResizeObserver)
ResizeObserver
(MutationObserver)
MutationObserver
(requestAnimationFrame)
requestAnimationFrame
(cancelAnimationFrame)
cancelAnimationFrame
(crypto.randomUUID)
crypto.randomUUID
(structuredClone)
structuredClone
(useContext)
useContext