Boolean in ECMAScript 262

Holds true/false values.

Inherits from:

Object

Show inherited properties/methods?

Instance Properties

name	type	description
constructor	Object	A reference to the constructor class for the current object instance. [from Object]
prototype	Object	The prototype for a class. [from Object]

Instance Methods

name	returns	description
hasOwnProperty()	Boolean	Determines if the object/instance itself has the named property or method.[from Object]
isPrototypeOf()	Boolean	Determines if the calling object prototype is in the inheritance chain for the supplied argument.[from Object]
propertyIsEnumerable()	Boolean	Determines if the object/instance itself has a property or method of the supplied name which will appear in a `for (prop in obj)` enumeration.[from Object]
toLocaleString()	String	For most objects, the same as `toString()` unless explicitly overridden.[from Object]
toString()	String	Returns a string representation of the object.[from Object]
valueOf()	String	Returns the internal `this` value of the object.[from Object]

Properties that are a Boolean

name	object	description
active	[anark] Asset	Should this asset be drawn?
alias	[pshop] File	(read only) Is the file a file system alias?
alias	[pshop] Folder	(read only) Is the Folder a file-system alias?
allLocked	[pshop] ArtLayer
allLocked	[pshop] LayerSet
alphaChannels	[pshop] PixarSaveOptions	save alpha channels
alphaChannels	[pshop] TiffSaveOptions	save alpha channels
alphaChannels	[pshop] PICTFileSaveOptions	save alpha channels
alphaChannels	[pshop] SGIRGBSaveOptions	save alpha channels
alphaChannels	[pshop] PhotoshopSaveOptions	save alpha channels
alphaChannels	[pshop] PICTResourceSaveOptions	save alpha channels
alphaChannels	[pshop] PDFSaveOptions	save alpha channels
alphaChannels	[pshop] BMPSaveOptions	save alpha channels
alphaChannels	[pshop] RawSaveOptions	save alpha channels
alternateLigatures	[pshop] TextItem	use alternate ligatures?
altKey	[events] MouseEvent	(read only) Was the 'alt' key depressed when this event was fired?
animVal	[svg] SVGAnimatedBoolean	(read only)
annotations	[pshop] TiffSaveOptions	save annotations
annotations	[pshop] PDFSaveOptions	save annotations
annotations	[pshop] PhotoshopSaveOptions	save annotations
antiAlias	[pshop] PDFOpenOptions	use antialias?
antiAlias	[pshop] EPSOpenOptions	use antialias?
askBeforeSavingLayeredTIFF	[pshop] Preferences
autoKerning	[pshop] TextItem	whether to use a font's built-in kerning information
autoUpdateOpenDocuments	[pshop] Preferences
baseVal	[svg] SVGAnimatedBoolean
beepWhenDone	[pshop] Preferences
bubbles	[events] Event	(read only)
buffered	[anark] Video	(read only) Is the video buffered and ready to play?
buffered	[anark] Music	(read only) Is the music buffered and ready to play?
cancelable	[events] Event	(read only)
checked	[html] HTMLInputElement
clickable	[anark] Node	Can this object be clicked on?
colorChannelsInColor	[pshop] Preferences
compact	[html] HTMLUListElement
compact	[html] HTMLDirectoryElement
compact	[html] HTMLDListElement
compact	[html] HTMLOListElement
compact	[html] HTMLMenuElement
constrainProportions	[pshop] PDFOpenOptions	constrain proportions of image
constrainProportions	[pshop] EPSOpenOptions	constrain proportions of image
createFirstSnapshot	[pshop] Preferences	automatically make first snapshot when a new document is created?
ctrlKey	[events] MouseEvent	(read only) Was the 'ctrl' key depressed when this event was fired?
declare	[html] HTMLObjectElement
defaultChecked	[html] HTMLInputElement
defaultSelected	[html] HTMLOptionElement
defer	[html] HTMLScriptElement
disabled	[html] HTMLOptionElement
disabled	[html] HTMLLinkElement
disabled	[html] HTMLSelectElement
disabled	[html] HTMLStyleElement
disabled	[html] HTMLInputElement
disabled	[stylesheets] StyleSheet
disabled	[html] HTMLButtonElement
disabled	[html] HTMLOptGroupElement
disabled	[html] HTMLTextAreaElement
downgradeColorProfile	[pshop] PDFSaveOptions	should the embedded color profile be downgraded to version 2
dynamicColorSliders	[pshop] Preferences
embedColorProfile	[pshop] PDFSaveOptions	embed color profile in document
embedColorProfile	[pshop] PICTFileSaveOptions	embed color profile in document
embedColorProfile	[pshop] DCS1_SaveOptions	embed color profile in document
embedColorProfile	[pshop] TiffSaveOptions	embed color profile in document
embedColorProfile	[pshop] DCS2_SaveOptions	embed color profile in document
embedColorProfile	[pshop] EPSSaveOptions	embed color profile in document
embedColorProfile	[pshop] PhotoshopSaveOptions	embed color profile in document
embedColorProfile	[pshop] PICTResourceSaveOptions	embed color profile in document
embedColorProfile	[pshop] JPEGSaveOptions	embed color profile in document
embedFonts	[pshop] PDFSaveOptions	embed fonts? (only valid if vector data is included)
eof	[pshop] File	(read only) Is the file pointer at the end of the File?
exists	[pshop] Folder	(read only) Returns true if the `path` of this Folder refers to an existing file on disk.
exists	[pshop] File	(read only) Returns true if the `path` of this File refers to an existing file on disk.
exportClipboard	[pshop] Preferences
fauxBold	[pshop] TextItem	use faux bold?
fauxItalic	[pshop] TextItem	use faux italic?
flipRowOrder	[pshop] BMPSaveOptions
fogEnable	[anark] Camera	Use fog?
fullSizePreview	[pshop] Preferences
global	RegExp	(read only) The global flag for the regular expression.
grouped	[pshop] ArtLayer	is the layer grouped with the layer below?
halftoneScreen	[pshop] DCS2_SaveOptions	include halftone screen
halftoneScreen	[pshop] DCS1_SaveOptions	include halftone screen
halftoneScreen	[pshop] EPSSaveOptions	include halftone screen
hangingPuntuation	[pshop] TextItem	use Roman Hanging Punctuation?
hidden	[pshop] File	Is the File invisible?
hyphenateCapitalWords	[pshop] TextItem	whether to hyphenate capitalized words
hyphenation	[pshop] TextItem	use hyphenation?
iconPreview	[pshop] Preferences
ignoreCase	RegExp	(read only) The case-insensitive flag for the regular expression.
imageCacheForHistograms	[pshop] Preferences
interlaced	[pshop] PNGSaveOptions	should rows be interlaced?
interlaced	[pshop] GIFSaveOptions	should rows be interlaced?
interleaveChannels	[pshop] RawFormatOpenOptions	are the channels in the image interleaved?
interpolation	[pshop] DCS1_SaveOptions	use image interpolation
interpolation	[pshop] EPSSaveOptions	use image interpolation
interpolation	[pshop] DCS2_SaveOptions	use image interpolation
interpolation	[pshop] PDFSaveOptions	use image interpolation?
isBackgroundLayer	[pshop] ArtLayer	is the layer a background layer?
isMap	[html] HTMLImageElement
keyboardZoomResizesWindows	[pshop] Preferences
largeArcFlag	[svg] SVGPathSegArcAbs
largeArcFlag	[svg] SVGPathSegArcRel
layers	[pshop] PDFSaveOptions	save layers
layers	[pshop] TiffSaveOptions	save layers
layers	[pshop] PhotoshopSaveOptions	save layers
ligatures	[pshop] TextItem	use ligatures?
lookAtLock	[anark] Camera	Always look at the same point?
loop	[anark] Music	Should the music continuously loop?
loop	[anark] Sound	Should the sound continuously loop?
loop	[anark] Video	Should the video continuously loop?
loopPresentation	[anark] Scene	Should the presentation loop?
macOSTumbnail	[pshop] Preferences
managed	[pshop] Document	(read only) is the document a workgroup document?
maximizeCompatibility	[pshop] Preferences	maximize compatibility for Photoshop (PSD) files
metaKey	[events] MouseEvent	(read only) Was the 'shift' key depressed when this event was fired?
mouseEvents	[anark] Behavior	Does the object to which this behavior is attached respond to mouse events?
multiFileDCS	[pshop] DCS2_SaveOptions
multiline	RegExp	(read only) The multiline flag for the regular expression.
multiple	[html] HTMLSelectElement
noBreak	[pshop] TextItem
noHref	[html] HTMLAreaElement
nonLinearHistory	[pshop] Preferences	allow non-linear history?
noResize	[html] HTMLFrameElement
noShade	[html] HTMLHRElement
noWrap	[html] HTMLTableCellElement
oldStyle	[pshop] TextItem	use old style?
orthographic	[anark] Camera	Use orthographic rendering?
paused	[anark] TimeContext	(read only) Is the context paused?
pixelDoubling	[pshop] Preferences
pixelsLocked	[pshop] ArtLayer
positionLocked	[pshop] ArtLayer
preserveExactColors	[pshop] GIFSaveOptions
preserveExactColors	[pshop] IndexedConversionOptions
psColorManagement	[pshop] EPSSaveOptions	use Postscript color management
quickMaskMode	[pshop] Document	is the document in the quick mask mode?
readonly	[pshop] File	May the file be altered?
readOnly	[html] HTMLInputElement
readOnly	[html] HTMLTextAreaElement
retainHeader	[pshop] RawFormatOpenOptions	retain header when saving?
rleCompression	[pshop] BMPSaveOptions	should RLE compression be used?
saved	[pshop] Document	(read only) has the document been saved since last change?
saveImagePyramid	[pshop] TiffSaveOptions
savePaletteLocations	[pshop] Preferences
selected	[html] HTMLOptionElement
shiftKey	[events] MouseEvent	(read only) Was the 'shift' key depressed when this event was fired?
showAsianTextOptions	[pshop] Preferences
showEnglishFontNames	[pshop] Preferences
showSliceNumber	[pshop] Preferences
showToolTips	[pshop] Preferences
smartQuotes	[pshop] Preferences
snapshot	[pshop] HistoryState	(read only) is the history state a snapshot?
specified	[dom] Attr	(read only)
specularEnable	[anark] Material	Enable specularity?
spotColors	[pshop] TiffSaveOptions	save spot colors
spotColors	[pshop] PhotoshopSaveOptions	save spot colors
spotColors	[pshop] RawSaveOptions	save spot colors
spotColors	[pshop] SGIRGBSaveOptions	save spot colors
spotColors	[pshop] DCS2_SaveOptions	save spot colors
spotColors	[pshop] PDFSaveOptions	save spot colors
strikeThru	[pshop] TextItem
sweepFlag	[svg] SVGPathSegArcRel
sweepFlag	[svg] SVGPathSegArcAbs
transferFunction	[pshop] DCS1_SaveOptions	include transfer functions in document
transferFunction	[pshop] DCS2_SaveOptions	include transfer functions in document
transferFunction	[pshop] EPSSaveOptions	include transfer functions in document
transparency	[pshop] PDFSaveOptions
transparency	[pshop] GIFSaveOptions
transparency	[pshop] IndexedConversionOptions
transparency	[pshop] TiffSaveOptions
transparentBackground	[anark] Layer	Should this layer obscure layers behind it?
transparentPixelsLocked	[pshop] ArtLayer
transparentWhites	[pshop] EPSSaveOptions	only valid when saving BitMap documents
underline	[pshop] TextItem
useAdditionalPluginFolder	[pshop] Preferences
useAutoLeading	[pshop] TextItem	whether to use a font's built-in leading information
useCurrentView	[svg] SVGSVGElement
useDiffusionDither	[pshop] Preferences
useLowerCaseExtension	[pshop] Preferences	should the file extension be lowercase
useOutlines	[pshop] PDFSaveOptions	use outlines for text? (only valid if vector data is included)
useShiftKeyForToolSwitch	[pshop] Preferences
useVideoAlpha	[pshop] Preferences	this option requires hardware support
vectorData	[pshop] DCS2_SaveOptions	include vector data
vectorData	[pshop] DCS1_SaveOptions	include vector data
vectorData	[pshop] EPSSaveOptions	include vector data
vectorData	[pshop] PDFSaveOptions	include vector data
visible	[pshop] Channel
visible	[pshop] LayerSet
visible	[pshop] ArtLayer
visible	[anark] Image	Apply this image to its material?
windowsTumbnail	[pshop] Preferences

Methods that return a Boolean

name	of object	description
animationsPaused()	SVGSVGElement
checkEnclosure()	SVGSVGElement	Is the element within a rectangular area?
checkIntersection()	SVGSVGElement	Does the element intersect the rect?
close()	File	Close the open File.
confirm()	Application	Display a confirmation dialog.
copy()	File	Copy the file to the given location.
create()	Folder	Create a new folder.
dispatchEvent()	EventTarget	Dispatches an event to the invoking object.
equals()	Vector	Compare two vectors for equivalence.
equals()	Rotation	Compare two rotation vectors for equivalence.
equals()	Color	Compare two colors for equivalence.
execute()	File	Run or open the file.
getBoolean()	ActionList	get the value of an item of type boolean
getBoolean()	ActionDescriptor	get the value of a key of type boolean
hasAttribute()	Element
hasAttributeNS()	Element
hasAttributes()	Node
hasChildNodes()	Node
hasExtension()	SVGTests
hasFeature()	DOMImplementation
haskey()	ActionDescriptor	does the descriptor contain the provided key?
hasOwnProperty()	Object	Determines if the object/instance itself has the named property or method.
isBuffered()	Presentation	Is a Music/Video buffered yet?
isEqual()	ActionDescriptor	return `true` if the provided color is visually equal to this color
isFinite()	Global	Returns `false` if the supplied number is `NaN`, `Infinity` or `-Infinity`; returns `true` otherwise.
isIdentity()	Matrix	Is this an identity matrix?
isNaN()	Global	Returns `true` if the supplied number is `NaN`, `false` otherwise.
isPrototypeOf()	Object	Determines if the calling object prototype is in the inheritance chain for the supplied argument.
isSupported()	Node
open()	File	Open the file for read/write operations.
propertyIsEnumerable()	Object	Determines if the object/instance itself has a property or method of the supplied name which will appear in a `for (prop in obj)` enumeration.
remove()	File	Delete the file.
remove()	Folder	Delete the folder.
rename()	File	Rename the file.
rename()	Folder	Rename the folder.
seek()	File	Seek to a location in the file.
test()	RegExp	Run the regular expression against a string; return `true` if a match exists, `false` otherwise.
write()	File	Write string data to the file.
writeln()	File	Write string data to the file.

Arguments that are a Boolean

name	in method	of object	description
altKeyArg	initMouseEvent()	[events] MouseEvent
antiAlias	similar()	[pshop] Selection
antiAlias	select()	[pshop] Selection
antiAlias	ance range()	[pshop] Selection
asCopy	saveAs()	[pshop] Document
blackPointCompensation	print()	[pshop] Document
blackPointCompensation	convertProfile()	[pshop] Document
bottom	trim()	[pshop] Document
canBubbleArg	initMouseEvent()	[events] MouseEvent
canBubbleArg	initEvent()	[events] Event	Specifies whether or not the e
canBubbleArg	initUIEvent()	[events] UIEvent
canBubbleArg	initMutationEvent()	[events] MutationEvent
cancelableArg	initEvent()	[events] Event	Specifies whether or not the e
cancelableArg	initMouseEvent()	[events] MouseEvent
cancelableArg	initMutationEvent()	[events] MutationEvent
cancelableArg	initUIEvent()	[events] UIEvent
ctrlKeyArg	initMouseEvent()	[events] MouseEvent
deep	cloneNode()	[dom] Node	If <code>true</code>, recursiv
deep	importNode()	[dom] Document	If <code>true</code>, recursiv
dither	convertProfile()	[pshop] Document
intoSelection	paste()	[pshop] Document
invert	applyGlassEffect()	[pshop] ArtLayer
inverting	load()	[pshop] Selection
largeArcFlag	createSVGPathSegArcRel()	[svg] SVGPathElement
largeArcFlag	createSVGPathSegArcAbs()	[svg] SVGPathElement
left	trim()	[pshop] Document
merge	copy()	[pshop] Selection
merge	clear()	[pshop] ArtLayer
metaKeyArg	initMouseEvent()	[events] MouseEvent
monochromatic	applyAddNoise()	[pshop] ArtLayer
monochrome	mixChannels()	[pshop] ArtLayer
preserveLuminosity	adjustColorBalance()	[pshop] ArtLayer
preserveTransparency	fill()	[pshop] Selection
preserveTransparency	stroke()	[pshop] Selection
right	trim()	[pshop] Document
shiftKeyArg	initMouseEvent()	[events] MouseEvent
sweepFlag	createSVGPathSegArcRel()	[svg] SVGPathElement
sweepFlag	createSVGPathSegArcAbs()	[svg] SVGPathElement
top	trim()	[pshop] Document
useBackface	intersect()	[anark] Model	Check for intersection with ba
useCapture	addEventListener()	[events] EventTarget
useCapture	removeEventListener()	[events] EventTarget
value	putBoolean()	[pshop] ActionList
value	putBoolean()	[pshop] ActionDescriptor