js clock functionality

Razvan Horeanga · Razvan Horeanga · commit d44dd4f9f355 · 2016-12-11T14:59:46.000-06:00
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
@@ -61,12 +61,37 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin:100%; /* move rotation point from middle of the segment to right margin */
+      transform: rotate(90deg); /*start all from 12:00*/
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0.1,2.7,0.58,1);
     }
 
   </style>
 
   <script>
 
+    const secondHand = document.querySelector('.second-hand');
+    const minuteHand = document.querySelector('.min-hand');
+    const hourHand = document.querySelector('.hour-hand');
+
+    function setDate(){
+      const now = new Date();
+      const seconds = now.getSeconds();
+      const secondsDegree = ((seconds/60) * 360) + 90;
+
+      const minutes = now.getMinutes();
+      const minutesDegree = ((minutes/60) * 360) +90;
+
+      const hours = now.getHours();
+      const hoursDegree = ((hours/12) * 360) +90;
+
+      secondHand.style.transform = `rotate(${secondsDegree}deg)`;
+      minuteHand.style.transform = `rotate(${minutesDegree}deg)`;
+      hourHand.style.transform = `rotate(${hoursDegree}deg)`;
+    }
+
+    setInterval(setDate,1000);
 
   </script>
 </body>
