javascript-calculator

A simple calculator built using HTML, CSS and JavaScript

Controls / Functionality

• Can be controlled using either mouse / touchscreen or by using the keyboard pressing the corresponding keys.

• Backspace deletes last digit.

• Last operation will show up above the input box every time any of the operators is selected.

• Pressing ± after entering the number will change the number to negative one.

Demo

javascript-number-systems-calculator

Number system conversion calculator built using HTML, CSS and JavaScript

Functionality

• You can only enter characters that correspond to a given number system.

• If you try to enter a character that does not correspond to the given number system, the input field will light up.

• All conversions are done instantly.

Demo