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Combining operators with functions

In the second article in our continuing series on scripting, noted scripting expert Christa Anderson covers some advanced scripting concepts and offers several tips that will help you debug your scripts.

Combining operators to create complex expressions can be arduous. Luckily, VBScript provides built-in functions for common tasks that combine operators without you needing to spell out exactly what needs to be done.

For example, you don't need to know the math to derive a square root -- you can use the Sqr function. Similarly, you can use functions to specify a data type, combine data into an array or split it out of one, or convert ASCII characters to their decimal numbers.

If a function you need isn't predefined, you can create it. Functions execute only when called, so you can write out user-defined functions anywhere in the course of a script.

Increase your scripting expertise

  Arranging and manipulating data
  Combining operators with functions
  Simplify with subroutines
  Where do objects come from?
  Grouping objects
  Seven quick scripting tips

Christa Anderson
When Christa Anderson began working with Windows Server operating systems in 1992, she became increasingly interested in finding more efficient and flexible ways of performing routine tasks. Christa has written extensively about administrative scripting and taught technical sessions on the subject at conferences such as Comdex and CeBIT, helping people who had never done any scripting to write their own scripts in half a day. In addition to her interest in scripting Windows management, Christa is an authority on server-based computing and the program manager for Terminal Services licensing in Longhorn. If you have a scripting question for Christa, please e-mail her at

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