This code basically is how to calculate GPA based on the course values and Grades. It has a table that includes a menu of grades for each course. On clicking the Calculate Your GPA button it checks for any empty grade of a course. After validating, it calculates the GPA. Routing, navigation, applying an active class to visited link is also handled

Simple High School GPA calculator. Simply enter the multipliers that your school uses for Honors and AP classes. (Assumes that school uses a GPA scale in which A+ and A grades are considered a 4.0.))