Comparison Operators

We often need to compare values when programming, and there’s a number of ways to do this.

Equality

The equality operator can be used to check if two values are equal to each other. Most programming languages use the double-equals operator (==) to check for equality.

For example, if we wanted to know if the variable answer is $42$, we could write:

answer == 42;

This would return true if the answer was $42$ and false if it wasn’t.

Why double-equals and not a single equals sign? Recall that we learned that the single equals sign was used for assignment. This means that the ...