Returns TRUE if string can be converted to a number; otherwise, FALSE. Supports numbers in U.S. number format. For international number support, use LSIsNumeric.
IsNumeric(string)
Parameter |
Description |
---|---|
string |
A string value |
<!--- This example shows the use of IsNumeric ---> <html> <head> <title>IsNumeric Example</title> </head> <body bgcolor = silver> <H3>IsNumeric Example</H3> <cfif IsDefined("FORM.theTestValue")> <cfif IsNumeric(FORM.theTestValue)> <H3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> can be converted to a number</H3> <cfelse> <H3>The string <cfoutput>#DE(FORM.theTestValue)#</cfoutput> cannot be converted to a number</H3> </cfif> </cfif> <form action = "isNumeric.cfm" method = "POST"> <P>Enter a string, and discover if it can be evaluated to a numeric value. <P><input type = "Text" name = "TheTestValue" value = "123"> <input type = "Submit" value = "Is it a Number?" name = ""> </FORM> </body> </html>