Lecture 20 .................................................................................................... 133
SW Development Methodology..................................................................... 133

Lecture 21..................................................................................................... 142
Data Types & Operators (Web Development Lecture 7) ............................... 142
21.1 JavaScript Data Types.................................................................... 143
21.2 Declaring Variables........................................................................ 144
21.3 JavaScript Operators ...................................................................... 148
21.4 Comparison Operators.................................................................... 148
21.5 Logical Operators .......................................................................... 148
21.6 Elements of JavaScript Statements ................................................. 149