Merge pull request #1 from prolazy/master

add array element avaragee

Author: munnasorder

average.js

@@ -0,0 +1,19 @@
+
+
+
+function sum (number) {
+    let total = 0;
+    for (let i = 0; i < number.length; i++) {
+        total+= number[i]
+    }
+    return total;
+}
+function avg(items) {
+	let avg = 0;
+	avg += parseFloat(sum(items) / items.length);
+	return parseFloat(avg.toPrecision(12));
+};
+
+
+// array element avarage
+console.log(avg([1,2,3,4,5]))