Add. Do while loop example

Author: shaikrasheed99

do-while-loop/sumOfNaturalNumbers.js

@@ -0,0 +1,10 @@
+let number = 10;
+let sum = 0;
+let i = 0;
+
+do {
+    sum = sum + i;
+    i = i + 1;
+} while (i <= number);
+
+console.log(sum);