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Microsoft JScript Features - Non-ECMA

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

VBArray 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

getVarDate

Displaying Information

print

Enumeration

Enumerator atEnd, item, moveFirst, moveNext

Namespaces

package, import

Objects

Enumerator VBArray ActiveXObject GetObject

Script Engine Identification

ScriptEngine ScriptEngineBuildVersion ScriptEngineMajorVersion ScriptEngineMinorVersion

See Also

Concepts

Microsoft JScript Features - ECMA

Other Resources

JScript Reference