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Microsoft JScript Features - ECMA

JScript .NET incorporates almost all of the features of the ECMAScript Edition 3 Language Specification. In addition, JScript .NET is being developed in conjunction with ECMAScript Edition 4 and incorporates many of the proposed features of that language as well. The tables below list the features of ECMAScript 3 and the proposed ECMAScript 4 features that JScript .NET supports.

Category ECMAScript 3 Feature/Keyword
Array Handling Array
concat,
join, length, reverse, slice, sort
Assignments Assign (=),
Addition Assignment (+=),
Bitwise AND Assignment (&=),
Bitwise OR Assignment (|=),
Bitwise XOR Assignment (^=),
Division Assignment (/=),
Left Shift Assignment (<<=),
Modulus Assignment (%=),
Multiplication Assignment (*=),
Right Shift Assignment (>>=),
Subtraction Assignment (-=),
Unsigned Right Shift Assignment (>>>=)
Booleans Boolean, true, false
Comments /*...*/ or //
Constants/Literals NaN
null,
Infinity
undefined
Control flow break
continue
do...while
for
for...in
if...else
Labeled
return
switch
while
Dates and Time Date
getDate, getDay, getFullYear, getHours, getMilliseconds, getMinutes, getMonth, getSeconds, getTime, getTimezoneOffset, getYear,
getUTCDate, getUTCDay, getUTCFullYear, getUTCHours, getUTCMilliseconds, getUTCMinutes, getUTCMonth, getUTCSeconds,
setDate, setFullYear, setHours, setMilliseconds, setMinutes, setMonth, setSeconds, setTime, setYear,
setUTCDate, setUTCFullYear, setUTCHours, setUTCMilliseconds, setUTCMinutes, setUTCMonth, setUTCSeconds,
toGMTString, toLocaleString, toUTCString, parse, UTC
Declarations Function
new
this
var
with
Error Handling Error, description, number, throw, try...catch
Function Creation caller, Function
arguments, length
Global Methods Global
escape, unescape
eval
isFinite, isNaN
parseInt, parseFloat
Math Math
abs, acos, asin, atan, atan2, ceil, cos, exp, floor, log, max, min, pow, random, round, sin, sqrt, tan,
E, LN2, LN10, LOG2E, LOG10E, PI, SQRT1_2, SQRT2
Numbers Number
MAX_VALUE, MIN_VALUE
NaN
NEGATIVE_INFINITY, POSITIVE_INFINITY
Object Creation Object
new
constructor, instanceof, prototype, toString, valueOf
Operators Addition (+), Subtraction (-)
Modulus arithmetic (%)
Multiplication (*), Division (/)
Negation (-)
Equality (==), Inequality (!=)
Less Than (<), Less Than or Equal To (<=)
Greater Than (>)
Greater Than or Equal To (>=)
Logical And(&&), Or (||), Not (!)
Bitwise And (&), Or (|), Not (~), Xor (^)
Bitwise Left Shift (<<), Shift Right (>>)
Unsigned Shift Right (>>>)
Conditional (?:)
Comma (, )
delete, typeof, void
Decrement ( -- ), Increment (++),
Strict Equality (===), Strict Inequality (!==)
Objects Array
Boolean
Date
Function
Global
Math
Number
Object
RegExp
Regular Expression
String
Regular Expressions and Pattern Matching RegExp
index, input, lastIndex, $1...$9, source, compile, exec, test
Regular Expression Syntax
Strings String
charAt, charCodeAt, fromCharCode
indexOf, lastIndexOf
split
toLowerCase, toUpperCase
length
concat, slice
match, replace, search
anchor, big, blink, bold, fixed, fontcolor, fontsize, italics, link, small, strike, sub, sup
Category Proposed ECMAScript 4 Feature/Keyword
Class-Based Objects class, extends, implements, interface,
function get, function set, static,
public, private, protected, internal,
abstract, final,
hide, override,
static
Declarations const
Enumerations enum

See Also

Microsoft JScript Features - Non-ECMA | JScript Reference

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