Can someone help me understand != in Ruby? : <p>I'm working on learning Ruby on codecademy. I've gotten to comparators and am sure I'm not understanding !=.
The directions say, exactly "You can also check to see if two values are not equal using the != comparator." 
What's the need to check whether something is specifically NOT equal to something else? Does this only apply to numbers? Would anyone be willing to give me 2-3 examples? </p>
