How to write multiple condition in if let statement?

Question

How to modify if let statement so it also handles another condition like Some(7) == b?

let a = Some(6);
let b = Some(7);
if let Some(6) = a /* && Some(7) = b */{
    // do something
}

user_3889449 · Answer

You can use a simple tuple:

if let (Some(6), Some(7)) = (a, b) {
    // do something
}

user_1233251 · Answer

The if let expression only admits one match arm pattern against one expression. However, they can be merged together into a single equivalent pattern match condition. In this case, the two Option values can be combined into a pair and matched accordingly.

if let (Some(6), Some(7)) = (a, b) {
    // do something
}

Playground

How to write multiple condition in if let statement?

2 Answers