How to hide a block on the main page using JS?

Question

PHP

There is a div block with the astroid-column class.
The question is how to hide this block only on the main page using js
Thanks in advance

Answer 1

if ($sql)
   {
 ....
   }

And you are sure that there are no errors in the SQL query, you do not check

if ($sql)
   {
...
    } else {
    echo mysql_error($sql);
    }

well, the mysql extension is deprecated, use mysqli

Answer 2

Perhaps there is simply no extension, in php > 7 it is not:
php.net/manual/ru/function.mysql-query.php
Enable error reporting in php.ini so that you do not wander through the code blindfolded. This saves years of life in the end.

Answer 3

Many people no longer see the difference between JS and JQuery....

document.getElementsByClassName('astroid-column').style.display = 'none';