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<FONT SIZE=1 COLOR=#660033>Microsoft® Visual Basic® Scripting Edition</FONT><BR>
<FONT SIZE=5 COLOR=#660033><B>VBScript Constants</B></FONT>
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<H5>What Is a Constant?</H5>
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A <A HREF="vbs0.htm#defConstant">constant</A> is a meaningful name that takes the place of a number or string and never changes. VBScript defines a number of <A HREF="vbs0.htm#defIntrinsicConstant">intrinsic constants</A>. You can get information about these intrinsic constants from the <a href="vbsTOC.htm">VBScript Language Reference</a>.
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<H5>Creating Constants</H5>
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You create user-defined constants in VBScript using the <a href="vbs569.htm"><b>Const</b></a> statement. Using the <B>Const</B> statement, you can create string or numeric constants with meaningful names and assign them literal values. For example:
<BLOCKQUOTE><PRE><FONT FACE="Courier New" SIZE=3>Const MyString = "This is my string."
Const MyAge = 49
</FONT></PRE>
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Note that the string literal is enclosed in quotation marks (" "). Quotation marks are the most obvious way to differentiate string values from numeric values. <A HREF="vbs0.htm#defDateLiteral">Date literals</A> and time literals are represented by enclosing them in number signs (#). For example:
<BLOCKQUOTE><PRE><FONT FACE="Courier New" SIZE=3>Const CutoffDate = #6-1-97#
</FONT></PRE>
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You may want to adopt a naming scheme to differentiate constants from variables. This will prevent you from trying to reassign constant values while your script is running. For example, you might want to use a "vb" or "con" prefix on your constant names, or you might name your constants in all capital letters. Differentiating constants from variables eliminates confusion as you develop more complex scripts.
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