successfully complete project-1 past part

mk1121 · mk1121 · commit a5a68ef3772c · 2021-05-18T05:01:19.000+06:00
diff --git a/01-color-flipper/setup/app.js b/01-color-flipper/setup/app.js
@@ -1 +1,12 @@
 const colors = ["green", "red", "rgba(133,122,200)", "#f15025"];
+const btn = document.getElementById("btn");
+const color = document.querySelector(".color");
+
+btn.addEventListener("click", function(){
+    const randomNumber = colors[getRandomNumber()];
+    document.body.style.backgroundColor = randomNumber;
+    color.textContent = randomNumber;
+});
+function getRandomNumber(){
+   return Math.floor(Math.random() * colors.length);
+};
