Why are the results just flashing on to the screen then clearing immediatly after just a few seconds

Question

https://code.sololearn.com/WUa2NwSRC36G

Answer 1

type="submit" on the submit button automatically causes the form to send a POST http request.
changing this to type="button" stops that from happening.
Adding onsubmit="event.preventDefault();" to the form is another solution

Answer 2

JME the second is actually the best solution. Because, the first won't respond to the user pressing the enter key

Answer 3

My results are not clearing

Answer 4

What do you guys think of it