CFLib.org – forceBoolean

forceBoolean(bool)

Last updated September 5, 2010

author

Version: 1 | Requires: ColdFusion 5 | Library: UtilityLib

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Description:
You pass in a variable, and I will return either a "1" if it evaluates to true, or a "0" if it is not a boolean (as in an empty string or any other non-boolean) or evaluates to false.

Return Values:
Returns a boolean.

Example:

view plain print about

<cfset i="">
<cfif i></cfif> returns error.
<ciff forceBoolean(i)></cfif> works.
#forceBoolean(i)# returns "0".

<cfset i="">
<cfif i></cfif> returns error.
<ciff forceBoolean(i)></cfif> works.
#forceBoolean(i)# returns "0".

Parameters:

Name	Description	Required
bool	Value to check.	Yes

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				about
				ColdFISH is developed by Jason Delmore.  Source code and license information available at coldfish.riaforge.org.  Version 3.1.1
				
			<cfscript>
/**
 * Returns a boolean 1/0 from anything, including empty strings.
 * 
 * @param bool 	 Value to check. (Required)
 * @return Returns a boolean. 
 * @author Alan McCollough (&#97;&#109;&#99;&#99;&#111;&#108;&#108;&#111;&#117;&#103;&#104;&#64;&#97;&#110;&#116;&#104;&#99;&#46;&#111;&#114;&#103;) 
 * @version 1, September 5, 2010 
 */
function forceBoolean(bool){
  if(isBoolean(bool) AND bool IS TRUE)
     return "1";
  else
     return "0";
}
</cfscript>
		<cfscript>
/**
 * Returns a boolean 1/0 from anything, including empty strings.
 * 
 * @param bool      Value to check. (Required)
 * @return Returns a boolean. 
 * @author Alan McCollough (amccollough@anthc.org) 
 * @version 1, September 5, 2010 
 */
function forceBoolean(bool){
  if(isBoolean(bool) AND bool IS TRUE)
     return "1";
  else
     return "0";
}
</cfscript>