added examples for switch and while/do-while loops

basic.html

@@ -87,6 +87,21 @@
         document.write("<br>")
         arrForOf(myArr);
     </script>
+    <h1>Switch Statement</h1>
+    <script>
+        switchExample(0);
+        switchExample(1);
+        switchExample(2);
+        switchExample(3);
+        switchExample(4);
+    </script>
+    <h1>While/Do-While Loop</h1>
+    <script>
+        document.write("While Loop:<br> ");
+        whileExample();
+        document.write("Do-While loop: ")
+        doWhileExample();
+    </script>
 </body>
 
 </html>
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external-js.js

@@ -38,8 +38,8 @@ function add(a, b) {
 
 function conditionalDemo(arg) {
     let myArg = "Deep";
-    if(arg == myArg) {
-        document.write("You entered the same arg. Entered: " + arg + ", " +  " Expected: " + myArg);
+    if (arg == myArg) {
+        document.write("You entered the same arg. Entered: " + arg + ", " + " Expected: " + myArg);
     } else {
         document.write("You didnt enter the same arg. Entered: " + arg + ", " + " Expected: " + myArg);
     }
@@ -47,14 +47,68 @@ function conditionalDemo(arg) {
 
 function arrForIn(arr) {
     document.write("With for-in: ");
-        for( let val in arr) {
-            document.write(val);
-        }
+    for (let val in arr) {
+        document.write(val);
+    }
 }
 
 function arrForOf(arr) {
     document.write("With for-of: ")
-        for(let val of arr) {
-            document.write(val);
-        }
+    for (let val of arr) {
+        document.write(val);
+    }
+}
+
+function switchExample(switchVal) {
+    switch (switchVal) {
+        case 0:
+            document.write("zero<br>");
+            break;
+        case 1:
+            document.write('one<br>');
+            break;
+        case 2:
+            document.write('two<br>');
+            break;
+        case 3:
+            document.write('three<br>');
+            break;
+        case 4:
+            document.write('four<br>');
+            break;
+        case 5:
+            document.write('five<br>');
+            break;
+        case 6:
+            document.write('six<br>');
+            break;
+        case 7:
+            document.write('seven<br>');
+            break;
+        case 8:
+            document.write('eight<br>');
+            break;
+        case 9:
+            document.write('nine<br>');
+            break;
+    }
+}
+
+function whileExample() {
+    let x = 0;
+    while (x < 10) {
+        document.write(x + "<br>");
+        x++;
+    }
+}
+
+function doWhileExample() {
+    let result = '';
+    let i = 0;
+
+    do {
+        i = i + 1;
+        result = result + i;
+    } while (i < 5);
+    document.write(result);
 }
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