CheckBox as Selector

This is a simple program using JavaScript. And it’s called Simple Math Calculator Using CheckBox. This is a very common program, but this is suited for the beginner in JavaScript Language. This program contains 2 textboxes where the user types for the numeric value, then 4 check box for addition, subtraction, multiplication, and division.

In my last tutorial I teach you how to save multiple data in MySQL database. This time, I will teach you how to delete multiple data with a selector which is a CheckBox. With this, you can choose whatever data you want to delete and it is very useful. Now lets begin: I already created the MySQL Database in my first tutorial.