Gmail – keyboard shortcut for discarding reply drafts in Gmail

I was about to write a Chrome extension for this purpose. Then I stumbled upon Shortkeys. It's a neat little extension allowing us to bind key combinations to various actions, including running JavaScript code.

You could create a new rule, and add a script as such:

console.log("magic in progress");
var e = document.querySelectorAll("div[aria-label='Discard draft']")
for(var i=0;i<e.length;i++){
   e[i].click();
}