Calculator project

From Odin.

Functionalities

• add
• subtract
• multiply
• divide
• multiple operators
• floating points
• backspace/delete last entry only

UI

Apple-ish

To improve

• less alerts, just ignore multiple entries of operators or decimal points.

Lessons learned

• Need to think more like a JS programmer. Use more events instead of array manipulation.
• Use classes instead of a lot of scattered functions and global variables