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Keydown + switch case, why this code doesn't work?

I try to write a JS code where, when I press some letters keys on my keyboard or when I click on buttons symbolizing these same letters (each button has a class name with one of these letters), this plays a sound.

I don't understand why the following code concretely doesn't work:

var numberOfButtons = document.querySelectorAll(".drum");

for (var i = 0; i < numberOfButtons.length; i++) {

  numberOfButtons[i].addEventListener("click", function() {

    var buttonHTML = this.textContent;
    makeSound(buttonHTML);
  });

  document.addEventListener("keydown", function(event) {
    makeSound(event.key);
  });

  function makeSound(key) {
    switch (key) {
      case "w":
        var tom1 = new Audio('sounds/tom-1.mp3');
        tom1.play();
        break;

      case "a":
        var tom2 = new Audio('sounds/tom-2.mp3');
        tom2.play();
        break;

      case "s":
        var tom3 = new Audio('sounds/tom-3.mp3');
        tom3.play();
        break;

      case "d":
        var tom4 = new Audio('sounds/tom-4.mp3');
        tom4.play();
        break;

      case "j":
        var snare = new Audio('sounds/snare.mp3');
        snare.play();
        break;

      case "k":
        var crash = new Audio('sounds/crash.mp3');
        crash.play();
        break;

      case "l":
        var kick = new Audio('sounds/kick-bass.mp3');
        kick.play();
        break;

      default:
        console.log(event.key);
    }
  }

about 4 years ago · Juan Pablo Isaza
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