What is # means

Question

What does it mean?

Answer 1

In CSS (Cascading Style Sheets) it implies an 'id' to certain HTML unit. Also in JQuery.

Answer 2

It's called hash sign. Use for comment in some language. (Programming language ofcourse!) And also use as hash tag in social site. :)

Answer 3

Octothorpe.

Means all sorts of things in differing context. Once upon a time, automated phone systems would make you hit the "pound" key to end a sequence. As Sylar said, social media uses it and some programming languages use it for comments.

Answer 4

Thanks :)