VBScript Tutorials - Herong's Tutorial Examples

∟Expression and Order of Operation Precedence

This chapter provides tutorial examples and notes about expressions in VBScript. Topics include writing a simple expression or a complex expression, order of operation precedence, examples of expressions.

What Is an Expression?

Precedences of Operations

Examples of Expressions

Conclusions:

• A simple expression can be a data literal, a variable or function call.
• A complex expression can be an operation or a group of operations.
• Operations in a complex expression must be evaluated according to the order of operation precedence.
• An expression will always result a single value.

Table of Contents

 About This Book

 Introduction of VBScript - Visual Basic Scripting Edition

 Variant Data Type, Subtypes, and Literals

 Arithmetic Operations

 Numeric Comparison Operations and Logical Operations

 String Operations - Concatenation and Comparison

 Variable Declaration and Assignment Statement

►Expression and Order of Operation Precedence

 Statement Syntax and Statement Types

 Array Data Type and Related Statements

 Array References and Array Assignment Statements

 Conditional Statements - "If ... Then" and "Select Case"

 Loop Statements - "For", "While", and "Do"

 "Function" and "Sub" Procedures

 Built-in Functions

 Inspecting Variables Received in Procedures

 Error Handling Flag and the "Err" Object

 Regular Expression Pattern Match and Replacement

 scrrun.dll - Scripting Runtime DLL Library

 Creating Your Own Classes

 IE Web Browser Supporting VBScript

 IIS ASP Server Supporting VBScript

 WSH (Windows Script Host)

 References

 Printable Copy - PDF Version