The following table lists the version of Microsoft JScript implemented by host applications.

Versions

Host Application	1.0	2.0	3.0	4.0	5.0	5.1	5.5	5.6
Microsoft Internet Explorer 3.0	x
Microsoft Internet Information Server 3.0		x
Microsoft Internet Explorer 4.0			x
Microsoft Internet Information Server 4.0			x
Microsoft Visual Studio 6.0				x
Microsoft Internet Explorer 5.0					x
Microsoft Internet Explorer 5.01						x
Microsoft Windows 2000						x
Microsoft Internet Explorer 5.5							x
Microsoft Windows Millennium Edition							x
Microsoft Internet Explorer 6.0								x
Microsoft Windows XP								x

The following table lists JScript language features and the version when first introduced.

Language Element	1.0	2.0	3.0	5.0	5.5
0n Property					x
$1...$9 Properties			x
abs Method	x
acos Method	x
ActiveXObject Object			x
Addition Assignment Operator (+=)	x
Addition Operator (+)	x
anchor Method	x
apply Method					x
arguments Object	x
arguments Property		x
Array Object		x
asin Method	x
Assignment Operator (=)	x
atan Method	x
atan2 Method	x
atEnd Method			x
big Method	x
Bitwise AND Assignment Operator (&=)	x
Bitwise AND Operator (&)	x
Bitwise Left Shift Operator (<<)	x
Bitwise NOT Operator (~)	x
Bitwise OR Assignment Operator (\|=)	x
Bitwise OR Operator (\|)	x
Bitwise Right Shift Operator (>>)	x
Bitwise XOR Assignment Operator (^=)	x
Bitwise XOR Operator (^)	x
blink Method	x
bold Method	x
Boolean Object		x
break Statement	x
call Method					x
callee Property					x
caller Property		x
catch Statement				x
@cc_on Statement			x
ceil Method	x
charAt Method	x
charCodeAt Method					x
Comma Operator (,)	x
// (Single-line Comment Statement)	x
/../ (Multiline Comment Statement)	x
Comparison Operators	x
compile Method			x
concat Method (Array)			x
concat Method (String)			x
Conditional Compilation			x
Conditional Compilation Variables			x
Conditional (Ternary) Operator (?:)	x
constructor Property		x
continue Statement	x
cos Method	x
Data Type Conversion			x
Date Object	x
Debug Object			x
debugger Statement			x
decodeURI Method					x
DecodeURIComponent Method					x
Decrement Operator (--)	x
delete Operator			x
description Property				x
dimensions Method			x
Division Assignment Operator (/=)	x
Division Operator (/)	x
do...while Statement			x
E Property	x
encodeURI Method					x
encodeURI Component Method					x
Enumerator Object			x
Equality Operator (==)	x
Error Object				x
escape Method	x
eval Method	x
exec Method			x
exp Method	x
finally Statement				x
fixed Method	x
floor Method	x
fontcolor Method	x
fontsize Method	x
for Statement	x
for...in Statement				x
fromCharCode Method			x
Function Object		x
function Statement	x
getDate Method	x
getDay Method	x
getFullYear Method			x
getHours Method	x
getItem Method			x
getMilliseconds Method			x
getMinutes Method	x
getMonth Method	x
GetObject Function			x
getSeconds Method	x
getTime Method	x
getTimezoneOffset Method	x
getUTCDate Method			x
getUTCDay Method			x
getUTCFullYear Method			x
getUTCHours Method			x
getUTCMilliseconds Method			x
getUTCMinutes Method			x
getUTCMonth Method			x
GetUTCSeconds Method			x
getVarDate Method			x
getYear Method	x
Global Object			x
global Property					x
Greater than Operator (>)	x
Greater than or equal to Operator (>=)	x
hasOwnProperty Method					x
Identity Operator (===)	x
@if Statement			x
if...else Statement	x
ignoreCase Property					x
In Operator	x
Increment Operator (++)	x
index Property			x
indexOf Method	x
Inequality Operator (!=)	x
Infinity Property			x
input Property ($_)			x
instanceof Operator				x
isFinite Method			x
isNaN Method	x
IsPrototypeOf Method					x
italics Method	x
item Method			x
join Method		x
Labeled Statement			x
lastIndex Property			x
lastIndexOf Method	x
lastMatch Property ($&)					x
lastParen Property ($+)					x
lbound Method			x
leftContext Property ($')					x
Left Shift Assignment Operator (<<=)	x
length Property (Arguments)					x
length Property (Array)		x
length Property (Function)		x
length Property (String)	x
Less than Operator (<)	x
Less than or equal to Operator (<=)	x
link Method	x
LN2 Property	x
LN10 Property	x
localeCompare Method					x
log Method	x
LOG2E Property	x
LOG10E Property	x
Logical AND Operator (&&)	x
Logical NOT Operator (!)	x
Logical OR Operator (\|\|)	x
match Method			x
Math Object	x
max Method	x
MAX_VALUE Property		x
message Property					x
min Method	x
MIN_VALUE Property		x
Modulus Assignment Operator (%=)	x
Modulus Operator (%)	x
moveFirst Method			x
moveNext Method			x
multiline Property					x
Multiplication Assignment Operator (*=)	x
Multiplication Operator (*)	x
name Property					x
NaN Property (Global)			x
NaN Property (Number)		x
NEGATIVE_INFINITY Property		x
new Operator	x
Nonidentity Operator (!==)	x
Number Object		x
number Property				x
Object Object			x
Operator Precedence	x
parse Method	x
parseFloat Method	x
parseInt Method	x
PI Property	x
pop Method					x
POSITIVE_INFINITY Property		x
pow Method	x
prototype Property		x
propertyIsEnumerable Property					x
push Method					x
random Method	x
RegExp Object			x
Regular Expression Object			x
Regular Expression Syntax			x
replace Method	x
return Statement	x
reverse Method		x
rightContext Property ($')					x
Right Shift Assignment Operator (>>=)	x
round Method	x
ScriptEngine Function		x
ScriptEngineBuildVersion Function		x
ScriptEngineMajorVersion Function		x
ScriptEngineMinorVersion Function		x
search Method			x
@set Statement			x
setDate Method	x
setFullYear Method			x
setHours Method	x
setMilliseconds Method			x
setMinutes Method	x
setMonth Method	x
setSeconds Method	x
setTime Method	x
setUTCDate Method			x
setUTCFullYear Method			x
setUTCHours Method			x
setUTCMilliseconds Method			x
setUTCMinutes Method			x
setUTCMonth Method			x
setUTCSeconds Method			x
setYear Method	x
shift Method					x
sin Method	x
slice Method (Array)			x
slice Method (String)			x
small Method	x
sort Method		x
source Property			x
splice Method					x
split Method			x
sqrt Method	x
SQRT1_2 Property	x
SQRT2 Property	x
strike Method	x
String Object	x
sub Method	x
substr Method			x
substring Method	x
Subtraction Assignment Operator (-=)	x
Subtraction Operator (-)	x
sup Method	x
switch Statement			x
tan Method	x
test Method			x
this Statement	x
throw Statement				x
toArray Method			x
toDateString Method					x
toExponential Method					x
toFixed Method					x
toGMTString Method	x
toLocaleDateString Method					x
toLocaleLowercase Method					x
toLocaleString Method	x
toLocaleTimeString Method					x
toLocaleUppercase Method					x
toLowerCase Method	x
toPrecision Method					x
toString Method		x
toTimeString Method					x
toUpperCase Method	x
toUTCString Method			x
try Statement				x
typeof Operator	x
ubound Method			x
Unary Negation Operator (-)	x
undefined Property					x
unescape Method	x
unshift Method					x
Unsigned Right Shift Assignment Operator (>>>=)	x
Unsigned Right Shift Operator (>>>)	x
UTC Method	x
valueOf Method		x
var Statement	x
VBArray Object			x
void Operator		x
while Statement	x
with Statement	x
write Method			x
writeln Method			x

Versions

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