Loops and iteration

script.js

@@ -348,7 +348,7 @@ console.log(jane);
 /*****************************
 * Objects and methods
 */
-
+/*
 var john = {
     firstName: 'John',
     lastName: 'Smith',
@@ -362,5 +362,48 @@ var john = {
 };
 john.calcAge();
 console.log(john);
+*/
+
+
+
+
+/*****************************
+* Loops and iteration
+*/
+
+
+// for loop
+for (var i = 1; i <= 20; i += 2) {
+    console.log(i);
+}
+// i = 0, 0 < 10 true, log i to console, i++
+// i = 1, 1 < 10 true, log i to the console, i++
+//...
+// i = 9, 9 < 10 true, log i to the console, i++
+// i = 10, 10 < 10 FALSE, exit the loop!
+var john = ['John', 'Smith', 1990, 'designer', false, 'blue'];
+for (var i = 0; i < john.length; i++) {
+    console.log(john[i]);
+}
+// While loop
+var i = 0;
+while(i < john.length) {
+    console.log(john[i]);
+    i++;
+}
+// continue and break statements
+var john = ['John', 'Smith', 1990, 'designer', false, 'blue'];
+for (var i = 0; i < john.length; i++) {
+    if (typeof john[i] !== 'string') continue;
+    console.log(john[i]);
+}
+for (var i = 0; i < john.length; i++) {
+    if (typeof john[i] !== 'string') break;
+    console.log(john[i]);
+}
+// Looping backwards
+for (var i = john.length - 1; i >= 0; i--) {
+    console.log(john[i]);
+}