wait - Javascript: Stop until RETURN key is press

Question

I'm newbie with javascript and I'm not able to figure out how to stop and wait until return key has been pressed.

Any help is appreciated.

Thanks in advance.

question from:https://stackoverflow.com/questions/65881700/javascript-stop-until-return-key-is-press

Answer 1

You could either do it with a callback function, or using async await to wait a specific key is pressed:

const keyIsPressed = target => new Promise(resolve => {
  document.body.addEventListener('keyup', ({ key }) => {
    if(key.toUpperCase() === target.toUpperCase()) {
      resolve();
    }
  }, { once: true });
});

async function start() {
  console.log('Waiting for user to press enter...');
  
  // pause here until enter is pressed
  await keyIsPressed('enter');
  
  console.log('Enter is pressed.');
}

start();