Final answer:
The == operator is used to check if the first value is equal to the second value.
Step-by-step explanation:
The operator used to check if the first value is equal to the second value is the == operator.
For example, if we have the statement a == b, it will evaluate to true if the value of a is equal to the value of b, and false otherwise.
Using this operator, you can compare numbers, strings, booleans, or any other data types that can be compared for equality.