Displaying a random article in the sidebar?

Question

JavaScript

Greetings.
How can I implement the output of a random article or picture in the sidebar using JS?
I'm not interested in the code itself, but in the idea of ​​how to do it?
Although I will not refuse direct hints with the code :)

Answer 1

With Math.random

Answer 2

You can also query from the database at once randomly
mysql

SELECT column FROM table
ORDER BY RAND()
LIMIT 1

mssql

SELECT TOP 1 column FROM table
ORDER BY NEWID()