1extern crate web_sys; 2 3// A macro to provide `println!(..)`-style syntax for `console.log` logging. 4#[macro_use] 5macro_rules! log { 6 ( $( $t:tt )* ) => { 7 use web_sys::console; 8 console::log_1(&format!( $( $t )* ).into()); 9 } 10}