Rust: What is the difference between match and if let in Rust?

match — exhaustive. if let — single pattern.

match:

• Exhaustive pattern matching.
• Must cover all cases.
• More verbose.
• Compiler checks.

1let value = Some(5);
2match value {
3    Some(x) => println!("{}", x),
4    None => println!("No value"),
5}

if let:

• Single pattern.
• Less verbose.
• Not exhaustive.
• Good for one case.

1let value = Some(5);
2if let Some(x) = value {
3    println!("{}", x);
4}

Key differences:

• match — exhaustive.
• if let — single pattern.
• match — all cases.
• if let — one case.