Day 01 Keyboard drum kit.

bweisberg · bweisberg · commit d9eb87cb75d9 · 2017-01-04T16:39:29.000-08:00
Learn how to listen for keydown events.
cool css transitions, watch them change live in the elements view of dev tools
diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
@@ -59,6 +59,24 @@
 
 <script>
 
+function playSound(e) {
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+    const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
+    if(!audio) return; //just stop the function from running altogether
+    audio.currentTime = 0; //rewind to the start
+    audio.play();
+    key.classList.add('playing');  
+}
+function removeTransition(e) {
+  if(e.propertyName !== 'transform') return; //skip it if it's not a transform
+
+  this.classList.remove('playing');
+}
+  
+const keys = document.querySelectorAll('.key');
+keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+window.addEventListener('keydown', playSound);
+
 </script>
 
 
