JavaScript 速查表

物件	方法	屬性	事件
document	close() open(mimeType, "replace") write(html) writeln(html)	alinkColor anchors[ ] bgColor cookie fgColor forms[ ] lastModified linkColor links[ ] location referrer title vlinkColor	onClick onDblClick onKeyDown onKeyPress onKeyUp onMouseDown onMouseUp
links[ ]		hash host hostname href pathname port protocol search target	onClick onMouseOver
forms[ ]	submit()	action elements encoding method target	onSubmit
button	click()	name value	onClick
submit	click()	name value	onClick
reset	click()	name value	onClick
text	focus() blur() select()	defaultValue name value	onBlur onChange onFocus onSelect
textarea	focus() blur() select()	defaultValue name value	onBlur onChange onFocus onSelect
select	blur() focus()	length name options[ ] selectedIndex	onBlur onFocus onChange
option		defaultSelected index length name options selected selectedIndex text value
checkbox	click()	name value checked defaultChecked	onClick
radio	click()	checked defaultChecked length name value	onClick
password	focus() blur() select()	name value defaultValue
hidden		name value
navigator		appCodeName appName appVersion mimeTypes[ ] plugins[ ] userAgent
window	alert(message) close() confirm(message) open(url, name, features) prompt(message, inputDefault) setTimeout(statement, delay) clearTimeout(timer)	defaultStatus frames[ ] length name opener parent self status top window	onLoad onUnload
location	reload() replace(url)	hash host hostname href pathname port protocol search
history	back() forward() go(location)	length
string	anchor(name) big() blink() bold() charAt(index) fixed() fontcolor(color) fontsize(size) indexOf(findString, [startingIndex]) italics() lastIndexOf(findString, [startingIndex]) link(href) small() strike() sub() substring(firstIndex, lastIndex) sup() toLowerCase() toUpperCase()	length
Date	getDate() getDay() getHours() getMinutes() getMonth() getSeconds() getTime() getTimezoneOffset() getYear() parse(datevalue) setDate(dateValue) setHours(hoursValue) setMinutes(minutesValue) setMonth(monthValue) setSeconds(second) setTime(timeValue) setYear(yearValue) toGMTString() toLocaleString() UTC(yearValue, monthValue, dateValue, hoursValue, minutesValue, secondsValue)
Math	abs(number) acos(number) asin(number) atan(number) atan2(y , x) ceil(number) cos(number) exp(number) floor(number) log(number) max(number1, number2) min(number1, number2) pow(number1, number2) random() round(number) sin(number) sqrt(number) tan(number)	E LN10 LN2 LOG10E LOG2E PI SQRT1_2 SQRT2
Image		border complete height hspace lowsrc name src vspace width	onLoad onError onAbort

內建函數

內建函數	可能傳回的資料型態
escape(string)	字串("%xx")
eval(string)	字串，數目，布林
isNaN(test_value)	布林
parseFloat(string)	浮點數，"NaN"，0
parseInt(string, base)	整數
unescape(string)	字串

運算子
運算子列表：

運算子類別	運算子
算術	+ ++ - -- * /
字串	+ +=
邏輯	&& || !
位元	& ^ | ~ << >> >>>
指定	= += -= *= /= %= &= ^= |= <<= >>= >>>=
比較	== != > >= < <=
特別	?:

運算子的優先次序： ( 最優先執行的運算子排第一 )

運算子類別	運算子
呼叫，會員	() []
反相，增減	! ++ --
乘除，餘數	* / %
加法，減法	+ -
移位	<< >> >>>
關係	< <= > >=
相等，不等	== !=
位元 AND	&
位元 XOR	^
位元 OR	|
邏輯 AND	&&
邏輯 OR	||
條件	?:
設定	= += -+ *= /= %=
逗號	,

保留字

保留字不可以用作變數、函數及物件名稱。

abstract boolean break byte case catch char class const continue default delete do double

else extends false final finally float for function goto if implements import in instanceof

int interface long native new null package private protected public return short static super

switch synchronized this throw throws transient true try typeof var void while with