Calculator developed from the "Curso Completo de JavaScript" at Udemy for hcode.
- Key sound (can be activated by double-clicking the AC key. To disable it, double-click the same key again).
- Copy the number on the display from the "Ctrl + C" command on the keyboard.
- Paste outside numbers from the "Ctrl + V" command on the keyboard.
- Numbers with more than 10 digits are not allowed.
- The keyboard can be used to perform operations.
- Esc key clears the display.
- Backspace key clears the last entry.