CFLib.org – Common Function Library Project

Description:
Given a date of birth, determine whether a user is old enough to satisfy an arbitrary minimum age requirement. Accurate down to the day.

Return Values:
Returns a boolean.

Example:

<cfoutput>
isOldEnough('5/27/1977',18): #isOldEnough('5/27/1977',18)#<br>
isOldEnough('1/30/1995',13): #isOldEnough('1/30/1995',13)#
</cfoutput>

Parameters:

Full UDF Source:

/**
 * Determine whether a date of birth exceeds minimum age requirement.
 * 
 * @param dob      Date of birth. (Required)
 * @param minAge      Age in years. (Required)
 * @return Returns a boolean. 
 * @author Paul Malan (paul@malan.org) 
 * @version 1, January 2, 2004 
 */
function isOldEnough(dob,minAge) {
    var goldenDate = dateAdd('yyyy', -minAge, now());
    if (datecompare(goldenDate,dob) gt 0) return true;
    else return false;
}