Returns true if only one of two specified expressions is true, false otherwise.
xor( expression1, expression2 )
' boolean value
expression1 xor expression2
boolean value
expression1, expression2
Boolean values.
These examples illustrate the possible values for XOR.
xor(true, false) %Returns true
xor(false, true) %Returns true
xor(false, false) %Returns false
xor(true, true) %Returns false