How can I get my unsaved survey form back?

HTML-CSS
1

I almost finished my survey form project which is my first. But I accidentally pressed back- button and all my coding were disappeared.

2

Hi there!

You say, unsaved. How then it be found as saved.

3

if you did not save it, there is no way to get it back. You may want to start using a local editor, so you can’t accidentally lose the code

4

Thank you for answering.