<Need your ideas> Interview and skill coding test

Hi, I am Mari who is Japanese live in Malaysia.
I am learning HTML, CSS, Javascript to be Front end developer.

when we apply for new job opportunities, we need usually a coding skill test,s don’t we ?
I’ve just found related interviews and answers one, but I couldn’t find skill coding test part.

what does the website usually refer to coding test part?
If you know, please share me the website.