| VAL | |
| Description
Converts numeric characters that occur at the beginning of a string to a number. |
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| Returns
A number. If conversion fails, returns zero. |
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| Category
Conversion functions, String functions |
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Function syntaxVal(string) |
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| See also
IsNumeric |
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| Parameters
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|
| Usage
This function works as follows:
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Example<h3>Val Example</h3>
<cfif IsDefined("FORM.theTestValue")>
<cfif Val(FORM.theTestValue) is not 0>
<h3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput>
can be converted to a number:
<cfoutput>#Val(FORM.theTestValue)#</cfoutput></h3>
<cfelse>
<h3>The beginning of the string <cfoutput>#DE(FORM.theTestValue)#
</cfoutput> cannot be converted to a number</h3>
</cfif>
</cfif>
<form action = "val.cfm">
<p>Enter a string, and determine whether its beginning can be evaluated
to a numeric value.
<p>
<input type = "Text"
name = "TheTestValue"
value = "123Boy">
<input type = "Submit"
value = "Is the beginning numeric?"
name = "">
</form>
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| STRING | |