JavaScript playground

const name = "you";

for (let i = 3; i > 0; i--) {
  console.log(i + "...");
}

console.log(`Hello, ${name}! This ran in your browser.`);
Output

Nothing here yet. Press Run (or Ctrl/Cmd + Enter) and whatever your code prints shows up here.

Code editor. Press Control or Command plus Enter to run the code. Tab indents; to move focus out of the editor, press Escape and then Tab.