Reserved

The following are “JS4Scratch Reserved” words and cannot be used as variables, labels or function names.

Backdrop	distanceTo	setPenColor	broadcastMessageWait
addClass	glide	setPenSize	css
addTo	goTo	setRotationStyle	delete
css	goTowards	setSize	hasClass
hasClass	hasClass	setX	invoke
removeClass	hide	setY	isKeyPressed
removeFrom	inner	show	nextBackdrop
Costume	insert	stopSounds	playSound
addClass	invoke	switchCostumeTo	playSoundLoop
addTo	isTouching	switchCostumeToNum	playSoundUntilDone
css	isTouchingBackdropColor	think	reresh
hasClass	isTouchingEdge	thinkWait	removeBackdrop
inner	move	touching	removeBackdropNum
insert	nextCostume	touchingBackdropColor	removeClass
removeClass	penClear	touchingEdge	removeSprite
removeFrom	penDown	turnLet	sendSpriteBackwards
resizeToImage	penUp	turnRight	sendSpriteForward
Sprite	playSound	wait	sendSpriteToBack
addClass	playSoundLoop	whenClicked	sendSpriteToront
addCostume	playSoundUntilDone	whenCloned	stopSounds
addTo	pointInDirection	whenEvent	switchBackdropTo
ask	pointTowards	whenlag	switchBackdropToNum
broadcastMessage	reresh	whenKeyPressed	wait
broadcastMessage	removeClass	whenLoaded	whenClicked
changePenSize	removeCostume	whenReceiveMessage	whenEvent
changeSize	removeCostumeNum	Stage	whenlag
changeX	removeFrom	addBackdrop	whenKeyPressed
changeY	resizeToImage	addClass	whenLoaded
clone	say	addSprite	whenReceiveMessage
css	sayWait	broadcastMessage	zoom

Additionally, the following are “JavaScript Reserved” words and also cannot be used as variables, labels or function names.

abstract	arguments	await	boolean
break	byte	case	catch
char	class	const	continue
debugger	default	delete	do
double	else	enum	eval
export	extends	false	final
finally	float	for	function
goto	if	implements	import
in	instanceof	int	interface
let	long	native	new
null	package	private	protected
public	return	short	static
super	switch	synchronized	this
throw	throws	transient	true
try	typeof	var	void
volatile	while	with	yield