if

To use if in Kotlin, add the condition to check within parentheses () and the action to take if the result is true within curly braces {}. You can use else and else if for additional branches and checks.

Also, you can also write if as an expression, which lets you assign its returned value directly to a variable. In this form, an else branch is required. The if expression serves the same purpose as the ternary operator (condition ? then : else) found in other languages.