From 49ed5b20e65678a8c6d60bf16ba501358e58386c Mon Sep 17 00:00:00 2001
From: Justin Doak <justinhdoak@gmail.com>
Date: Wed, 21 Dec 2016 21:51:48 -0500
Subject: [PATCH 1/2] Wrote function to play audio on press of valid key.

---
 01 - JavaScript Drum Kit/index-START.html | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..7bd794a2cf 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,7 +58,11 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
-
+  window.addEventListener('keydown', function(e) {
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`)
+    if(!audio) return; //Stops function from running with unmatched keys
+    audio.play();
+  });
 </script>
 
 

From 303d3343db97a6d8b0becc67b0a27df89330112e Mon Sep 17 00:00:00 2001
From: Justin Doak <justinhdoak@gmail.com>
Date: Wed, 21 Dec 2016 22:17:13 -0500
Subject: [PATCH 2/2] Added transition/removal and refactored.

---
 01 - JavaScript Drum Kit/index-START.html | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 7bd794a2cf..ebd0d4f50e 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,11 +58,23 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
-  window.addEventListener('keydown', function(e) {
-    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`)
+  function playSound(e){
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+    const key = document.querySelector(`.key[data-key="${e.keyCode}"]`);
     if(!audio) return; //Stops function from running with unmatched keys
+    audio.currentTime = 0; //Rewind sound to start
     audio.play();
-  });
+    key.classList.add('playing');
+  }
+
+  function removeTransition(e) {
+    if(e.propertyName !== 'transform') return;
+    this.classList.remove('playing');
+  }
+
+  const keys = document.querySelectorAll('.key');
+  keys.forEach(key => key.addEventListener('transitionend', removeTransition));
+  window.addEventListener('keydown', playSound);
 </script>