Microsoft JScript Features - ECMA

JScript incorporates almost all of the features of the ECMAScript Edition 3 Language Specification. In addition, JScript 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 supports.

Features supported by JScript

Category	ECMAScript 3 Feature/Keyword
Array Handling	Arrayconcat,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 lengthconcat, 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

Concepts

Microsoft JScript Features - Non-ECMA

Other Resources

JScript Reference