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Match

Most likely syntax

val user_id = POST::get("user_id")


match user_id
| Some(id){ print("user_id exists: {id}") }
| None { print("user_id doesn't exist") }

match user_id
| Some(id)
{
    print("user_id exists: {id}")
}
| None
{
    print("user_id doesn't exist")
}


match user_id
| Some(id) if id > 0
{
    print("user_id exists: {id}")
}
| _
{
    print("user_id has other values ")
}

Alternative syntax?

// Alternative syntax?

match user_id {
    Some(id) { print("user_id exists: {id}") }
    None { print("user_id doesn't exist") }
}

match user_id {
    Some(id) {
        print("user_id exists: {id}")
    }
    None {
        print("user_id doesn't exist")
    }
}