JavaScript Editor Ajax toolkit     Ajax website 

Main Page

JScript incorporates almost all of the features in ECMAScript Edition 3 and many of the proposed features proposed for ECMAScript Edition 4. In addition, JScript also has many unique features that are not provided by the ECMAScript languages. These JScript-specific features are listed in the table below.

JScript-specific Features

Category Feature/Keyword

Array Handling

VBArrayВ dimensions, getItem, lbound, toArray, ubound

Class-Based Objects

expando, super

Conditional Compilation

@cc_on,@if Statement,@set Statement,@debug,@position,Conditional Compilation Variables

Data Types

boolean, byte, char, decimal,double, float, int, long,Number, sbyte, short, String,uint, ulong, ushort

Dates and Time


Displaying Information



EnumeratorВ atEnd, item, moveFirst, moveNext


package, import


EnumeratorВ VBArrayВ ActiveXObjectВ GetObject

Script Engine Identification

ScriptEngineВ ScriptEngineBuildVersionВ ScriptEngineMajorVersionВ ScriptEngineMinorVersion

See Also

JavaScript Editor Ajax toolkit     Ajax website