how to detect the back button being pressed on the web to return to the previous page without the button on the web

Answer 1

In the callback function of keydown event, the parameter is event,

compare event.keyCode with the keycode value of keyboard backspace button.

Read:

https://developer.mozilla.org/en-US/docs/Web/API/Document/keydown_event

and
https://developer.mozilla.org/en-US/docs/Web/API/KeyboardEvent/keyCode

Answer 2

on keydown
keyCode

Answer 3

Avirur Rahman
Did you mean the backspace button on keyboard, or back button of the browser? I think you meant the latter option but please clarify this : )

Answer 4

Avirur Rahman
Okay bro, thanks for clarification 👍

I asked because your question said "back button being pressed on the web to return to the previous page" 😁

Answer 5

Ipang I mean the backspace button😄

Answer 6

Ipang well, before returning to the previous page I want to display a message like an alert / confirm

Answer 7

Gordon how to apply it give me an example