let if

October 13, 2022

I've used the let if pattern before, but not enough to remember how it works, so had to refresh myself on it. It's very useful. Here's a sample from tp-updater:

let updated_indicators = if self.updated_indicators.is_empty() {
    html! { <p>{ "There are no recently updated indicators."}</p> }
} else {
    html! { <p>{ format!("{:#?}", self.updated_indicators) }</p> }
};