peter-lyons-kehl

fn _f() {
    use alloc::string::String;

    let lambda: fn(&str) -> &str = |x| x;
    let lambda = |x| -> &str { x };

    // No:
    #[cfg(unused)]
    let lambda = |x: &str| x;
    #[cfg(unused)]

peter-lyons-kehl

Presentation on Const Generics as of 1.50.0 stable and 1.52.0-nightly

Challenges

• Beware no, or misleading, documentation
  • Nothing in Rust Book.
  • RFC https://rust-lang.github.io/rfcs/2000-const-generics.html and various issues rust-lang/rust#68436 have tips or examples, but many are invalid!
• Syntax may seem arbitrary:
  • Need ::< turbofish at some places, ordinary < elsewhere.
  • Need {...} curly brackets around some const generic parameter values, not around others.
  • Some error messages feel like going in circles.

peter-lyons-kehl

Clojure Destructuring Tutorial and Cheat Sheet

(Related blog post)

Simply put, destructuring in Clojure is a way of extracting values from a datastructure and bind them to symbols, without having to explicitly traverse the datstructure. It allows for elegant and concise Clojure code.

Vectors and Sequences

peter-lyons-kehl

Google Apps Script Gmail Utilities

##sendAndLabel(recipient, subject, body, options, label)##

An alternative to GmailApp.sendEmail(), which applies a label to the message thread in the sender's account.

Sends an email message with optional arguments. The email can contain plain text or an HTML body. The size of the email