Rust print

https://rust-lang.github.io/rfcs/2795-format-args-implicit-identifiers.html

println

Printing

println!("abc");

String Interpolation

let a = "A";
let b = "B";
println!("{a}--{b}");  // string interpolation

println!("hello, {name}", name="will"); // keyword assignment

Formatting

println!("Hello, {}", "alex");
println!("{0}, {0}, see {1}?", "alex", "movie");
println!("{person}, see {thing}?", person="alex", thing="movie");

Type Formatting

// formatting
println!("{:>4}", 2)             // "   2"  right align
println!("{:0>4}", 2)            // "0002"  right align, padded w/ zeros
println!("{var:>4}", var="boo")  // " boo"  right align

// type formatting
println!("{:X}", 1234)           // "4D2"   hex
println!("{:o}", 1234)           // "2322"  octal