Declaring a Variable

The var statement declares a local variable, and sets it value to the empty string (nil).

var variable_name

You can declare more than one variable by separating the variables with a comma. For example:

var a, b, c    // declares three variables

A local variable cannot be accessed outside of its function.

You don't have to declare variables if strictvars mode is off (default), but there are a couple of benefits if you do:

• Syntax formatting works in the display for references to it.  

• Variables are initialized to the empty string value, nil, so they are not confused with literal values when used without being initialized.

For example:

macro SomeFunction()

{ 

   var localx

 

    // "localx" is displayed with "Ref to Local" style

    localx = 0  

}

You can use the strictvars statement to require variable declarations.