How Do I Sending Non Printing Character On Some Apps

This morning I just thinking how to send an empty message on Standuply channel(Slack). Fortunately, I just found an answer at stackexchange, also an article on wikipedia about non-printing character.

non-printing character is a code point (a number) in a character set, that does not represent a written symbol.

Just testing to send non printing character → ” ‏‏‎” and it works.

Non Printing character work on slack. 😂

I just wanna doing some fun, it’s also working on telegram, whatsapp, and instagram. 😂

I’m able to fill instagram bio, name and address with non printing character.

Just sending non printing character to my friend on telegram.

Whoops, empty article on medium.

Also, I’m able to write non printing character on medium, here’s the link https://medium.com/@arryanggaputra/-b6fb7c7be8b , So funny man. Today I learn so much, thank god 🙏🏻😂