Query .is()
Tests if elements match a selector
query-is
10
component
Query
page.js
Collections
["query","dom","is","test","selector","traverse"]
.is()
Example
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Introduction
DOM Selectors
DOM Creation
Chaining
Shadow DOM
Collections
.count()
.exists()
.first()
.last()
.eq()
.slice()
.each()
.map()
.filter()
.not()
.is()
.index()
.indexOf()
.add()
.el()
.get()
DOM Traversal
.children()
.closest()
.closestAll()
.contains()
.find()
.next()
.parent()
.prev()
.siblings()
Content
.text()
.textNode()
.html()
.outerHTML()
.value()
.getSlot()
.setSlot()
DOM Manipulation
.append()
.prepend()
.appendTo()
.prependTo()
.insertBefore()
.insertAfter()
.clone()
.remove()
.detach()
.reverse()
Attributes
.attr()
.addAttr()
.removeAttr()
.data()
.removeData()
.addClass()
.removeClass()
.toggleClass()
.hasClass()
.prop()
Styling
.css()
.cssVar()
.computedStyle()
Events
.on()
.on() Event Object
.on() Delegation
.off()
Event Namespaces
.one()
.on() Abort
.onNext()
.ready()
.intercept()
.trigger()
.click()
.submit()
.focus()
.blur()
.dispatchEvent()
Dimensions
.width()
.height()
.innerWidth()
.innerHeight()
.outerWidth()
.outerHeight()
.naturalWidth()
.naturalHeight()
.scrollWidth()
.scrollHeight()
.scrollTop()
.scrollLeft()
.dimensions()
Position
.bounds()
.position()
.pagePosition()
.offsetParent()
.positioningParent()
.clippingParent()
.scrollParent()
.intersects()
Visibility
.show()
.hide()
.toggle()
.naturalDisplay()
.isVisible()
.isInView()
Components
.settings()
.setting()
.component()
.initialize()
.dataContext()
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Setup
ESM Usage
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Export Globals
Custom Alias
Custom Root
Introduction
DOM Selectors
DOM Creation
Chaining
Shadow DOM
Collections
.count()
.exists()
.first()
.last()
.eq()
.slice()
.each()
.map()
.filter()
.not()
.is()
.index()
.indexOf()
.add()
.el()
.get()
DOM Traversal
.children()
.closest()
.closestAll()
.contains()
.find()
.next()
.parent()
.prev()
.siblings()
Content
.text()
.textNode()
.html()
.outerHTML()
.value()
.getSlot()
.setSlot()
DOM Manipulation
.append()
.prepend()
.appendTo()
.prependTo()
.insertBefore()
.insertAfter()
.clone()
.remove()
.detach()
.reverse()
Attributes
.attr()
.addAttr()
.removeAttr()
.data()
.removeData()
.addClass()
.removeClass()
.toggleClass()
.hasClass()
.prop()
Styling
.css()
.cssVar()
.computedStyle()
Events
.on()
.on() Event Object
.on() Delegation
.off()
Event Namespaces
.one()
.on() Abort
.onNext()
.ready()
.intercept()
.trigger()
.click()
.submit()
.focus()
.blur()
.dispatchEvent()
Dimensions
.width()
.height()
.innerWidth()
.innerHeight()
.outerWidth()
.outerHeight()
.naturalWidth()
.naturalHeight()
.scrollWidth()
.scrollHeight()
.scrollTop()
.scrollLeft()
.dimensions()
Position
.bounds()
.position()
.pagePosition()
.offsetParent()
.positioningParent()
.clippingParent()
.scrollParent()
.intersects()
Visibility
.show()
.hide()
.toggle()
.naturalDisplay()
.isVisible()
.isInView()
Components
.settings()
.setting()
.component()
.initialize()
.dataContext()
Behaviors
Transition
Attach
Tooltip
Extending Query
Plugin
Behavior
Behavior Methods
Behavior Mutations
Behavior Events
Setup
Browser Usage
ESM Usage
Looping
each
asyncEach
asyncMap
Types
isString
isNumber
isBoolean
isArray
isFunction
isObject
isPlainObject
isEmpty
isPromise
isMap
isSet
isBinary
isDOM
isNode
isClassInstance
isArguments
Coercion
toNumber
toInteger
toBoolean
toString
toDate
toDuration
toByteSize
toBytes
Equality & Cloning
isEqual
clone
deepFreeze
Arrays
unique
filterEmpty
first
last
flatten
inArray
firstMatch
findIndex
where
some / any
remove
moveItem
sortBy
groupBy
intersection
difference
uniqueItems
range
sequence
sum
Objects
keys
values
hasProperty
extend
assignInPlace
deepExtend
pick / onlyKeys
filterObject
mapObject
arrayFromObject
reverseKeys
proxyObject
weightedObjectSearch
Paths
get
has
set
unset
keyedPath
eachPath
splitPath
parsePath
pathFrom
elementPath
pathKey
isPathKey
pathCovers
pathsOverlap
wildcardPath
expandPath
Change Detection
detectChanges
elementKey
trackWrites
trackReads
Strings
capitalize
capitalizeWords
toTitleCase
tokenize
humanize
kebabToCamel
camelToKebab
joinWords
getArticle
truncate
reverseString
escapeHTML
unescapeHTML
editDistance
similarity
suggest
fill
Functions
noop
wrapFunction
wait
memoize
createCache
debounce
debounce (async)
throttle
throttle (async)
Numbers
roundDecimal
roundNumber
Dates
formatDate
formatDuration
Regex
escapeRegExp
Bytes
toBase64
fromBase64
byteLength
formatByteSize
Crypto
generateId
isValidId
parseId
hashCode
getRandomSeed
Environment
isClient / isServer
isDevelopment
isCI
Browser
copyText
getIPAddress
getJSON
getKeyFromEvent
getText
idleCallback
openLink
CSS
adoptStylesheet
extractCSS
parseCSS
scopeStyles
selectorSpecificity
stringifyCSS
HTML
indentHTML
indentLines
parseHTML
stringifyHTML
Colors
oklchToHex
oklchToRgb
Debug
log
createLogger
warnOnce
error
throwError
createErrors
markTimeline
measureTimeline
Setup
ESM Usage
configure()
Datetime
datetime()
now()
startOfToday()
endOfToday()
Properties
.plus()
.minus()
.set()
.at()
.in()
.startOf()
.endOf()
.round()
.floor()
.ceil()
.next()
.previous()
.equals()
.isBefore()
.isAfter()
.isSame()
.isPast()
.isFuture()
.isToday()
.isTomorrow()
.isYesterday()
.isWeekend()
.isWeekday()
.isLeapYear()
.until()
.since()
.to()
.range()
.format()
.formatRelative()
.toString()
.toJSON()
.toJSDate()
.toTemporal()
Date Reads
Date
date()
today()
tomorrow()
yesterday()
Properties
.plus()
.minus()
.set()
.startOf()
.endOf()
.next()
.previous()
.equals()
.isBefore()
.isAfter()
.isSame()
.isPast()
.isFuture()
.isToday()
.isTomorrow()
.isYesterday()
.isWeekend()
.isWeekday()
.isLeapYear()
.until()
.since()
.at()
.to()
.range()
.points()
.split()
.format()
.formatRelative()
.toString()
.toJSON()
.toJSDate()
.toTemporal()
Time
time()
Properties
.plus()
.minus()
.set()
.startOf()
.endOf()
.round()
.floor()
.ceil()
.equals()
.isBefore()
.isAfter()
.isSame()
.until()
.since()
.on()
.to()
.format()
.toString()
.toJSON()
.toTemporal()
Duration
duration()
years() to milliseconds()
Properties
.plus()
.minus()
.times()
.negated()
.abs()
.balance()
.round()
.total()
.compare()
.equals()
.isZero()
.isNegative()
.toFields()
.toMilliseconds()
.format()
.toString()
.toJSON()
.toTemporal()
Ranges
dateRange()
datetimeRange()
timeRange()
Properties
.contains()
.overlaps()
.intersection()
.equals()
.isEmpty()
.points()
.split()
.in()
.format()
.toString()
.toJSON()
Helpers
compare()
earliest()
latest()
kindOf()
weekday()
weekdayNames()
monthNames()
isDateTime()
isCalendarDate()
isTime()
isDuration()
isDateRange()
isDateTimeRange()
isTimeRange()
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