Comparison of The Different Conditional Constructs

Use if Statement

Use an if statement if:

• It is desired to test the truthiness of an expression
• There is a single affirmative test
• There is a need to evaluate different expressions for each branch
• It can test expressions based on ranges of values or conditions

Use match Statement

Use a match statement if:

• It is desired to compare multiple possible conditions of an expression
• The values belong to the same domain
• It can test expressions based on values only, i.e., condition cannot take ranges

Use if let Statement

Use an if let statement if:

• There is a pattern in the condition and it is to be matched with the scrutinee expression

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Now that you have learned all about conditional statements in Rust, check your knowledge through a challenge in the upcoming lesson.