What does the % operator do in Ruby in N % 2?

Question

if counter % 2 == 1 I am trying to decode this line - it\'s a Rails project and I am trying to figure out what the % does in this if statement.

Answer 1

Also keep in mind that, Ruby's definition of the modulo (%) operator differs from that of C and Java. In Ruby, -7%3 is 2. In C and Java, the result is -1 instead. In Ruby, the sign of the result (for % operator) is always the same as the sign of the second operand.