The following examples demonstrate ColdFusion expression evaluation.

Example 1

2 * True + "YES" - ('y' & "es")

Result value as string: "2"

Explanation: (2*True) is equal to 2; ("YES"- "yes") is equal to 0; 2 + 0 equals 2.

Example 2

"Five is " & 5

Result value as string: "Five is 5"

Explanation: 5 is converted to the string "5".

Example 3

DateFormat("October 30, 2001" + 1)

Result value as string: "31-Oct-01"

Explanation: The addition operator forces the string "October 30, 2001" to be converted to a date-time object, and then to a number. The number is incremented by one. The DateFormat function requires its argument to be a date-time object; thus, the result of the addition is converted to a date-time object. One is added to the date-time object, moving it ahead by one day to October 31, 2001.