Statements

A statement is a piece of JScript code that performs an action. Some statements declare user-defined elements, such as variables, functions, classes, and enumerations, while other statements control program flow. The following sections link to information that explains how to use statements in JScript.

In This Section

• break Statement
  Terminates the current loop, or if in conjunction with a label, terminates the associated statement.

• class Statement
  Defines a class and the members of that class.

• @cc_on Statement
  Activates conditional compilation support.

• Comment Statements
  Causes comments, either single line (//) or multiline (/* */) to be ignored by the JScript parser.

• const Statement
  Defines a constant identifier and its value.

• continue Statement
  Stops the current iteration of a loop and starts a new iteration.

• debugger Statement
  Launches the installed debugger.

• do...while Statement
  Executes a statement block once, and then repeats execution of the loop until a condition expression evaluates to false.

• enum Statement
  Declares an enumeration and the enumeration values.

• for Statement
  Executes a block of statements for as long as a specified condition is true.

• for...in Statement
  Executes one or more statements for each element of an object or array.

• function Statement
  Declares a new function.

• function get Statement
  Declares the setter for a property.

• function set Statement
  Declares the getter for a property.

• @if...@elif...@else...@end Statement
  Conditionally executes a group of statements depending on the value of an expression.

• if...else Statement
  Conditionally executes a group of statements depending on the value of an expression.

• import Statement
  Enables access to external library.

• interface Statement
  Declares an interface and the members of the interface.

• Labeled Statement
  Provides an identifier for a statement.

• package Statement
  Provides a way to package classes and interfaces in named components.

• print Statement
  Provides a way to display information from a program run from the command line.

• return Statement
  Exits from the current function and returns a value from that function.

• @set Statement
  Creates variables used with conditional compilation statements.

• static Statement
  Declares a block of code that initializes a class.

• super Statement
  Refers to the base class of the current object.

• switch Statement
  Enables the execution of one or more statements when a specified expression's value matches a label.

• this Statement
  Refers to the current object.

• throw Statement
  Generates an error condition that can be handled by a try...catch statement.

• try...catch...finally Statement
  Implements error handling for JScript.

• var Statement
  Declares a variable.

• while Statement
  Executes a statement until a specified condition is false.

• with Statement
  Establishes the default object for a statement.

Related Sections

• JScript Reference
  Lists elements that comprise JScript Language Reference and links to topics that explain the details behind the proper use of language elements.

• .NET Framework Reference
  Lists links to topics that explain the syntax and structure of the .NET Framework class library and other essential elements.