How to get rid of duplicate messages after submitting the form, when clicking on the sumbit several times?

Question

Drupal

When creating a node, after filling out the form, if you press quickly 2 times, then several nodes with the same one will be created. How to avoid it?

Answer 1

As an option to block the button after the first click using javascript.

Answer 2

Put a captcha. After the first click, the captcha code changes, and the second time the letter will not be sent. + spam protection

Answer 3

Try this module https://www.drupal.org/project/hide_submit
Also discussed here