Help educate! Is there a way to use loop or to make this code shorter?

Question

I just learned .js. and was wondering if i could make a button to "change" the content inside an article with the next inline.
This is what I got, was wondering if anyone could help teach me how to use loop on this, or teach me how to make this shorter. Thanks in advance!

Code : https://code.sololearn.com/Wxo1fw8Wajp7/#html

Answer 1

Please insert it in code and share it .it will be more easier to understand and analise

this is a very long code here

Answer 2

Sorry, skipped my mind to post the link instead lol. Thanks!