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The if-else Expression

Explore how to use the if-else expression in ReasonML to write conditional code that executes based on boolean conditions. Understand the structure including if condition, execution block, and optional else block. Learn how to handle compound conditions with logical operators and ensure type consistency within expressions.

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 ...