The if-else Expression

The if condition is one of the most relevant statements in the world of computer programming. It is supported in many popular languages such as Java, C++, and Python. The condition is used to execute certain operations if a condition is fulfilled.

The else keyword is derived from if. We’ll understand more about this later in the lesson.

Let’s talk about the structure of the if-else expression.

The Structure

The structure of Reason’s if-else expression is fairly similar to the one followed in other languages. it can be divided into 3 parts:

1. The if condition
2. The expression to be executed
3. The else expression