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Microsoft JScript Features - ECMA (Visual Studio - JScript)

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 (Visual Studio - JScript)

Other Resources

JScript Reference