Hypen, em dash, and dash difference

Question

Hello, in folder naming for websites, what should I use? Hypen em dash or dash? I already searched and google tell that I should use hypen. But can someone tell how to type them? I know one of them is this:

1 2 3 4 5 6 7 8 9 0 - = backspace

That minus sign..
Is that a hypen? If not, how to type hypen? And how to type em dash and dash? Using keyboard. Thanks so much

Answer 1

Hyphen and minus symbols are same.

Cheque the ASCII code but dash is another thing and are of 2 types.

- (minus/hyphen)
– (en dash)
— (em dash)

Answer 2

Always prefer the simplest chars - the ones anyone can type easily. If you ever ask "how to type this", avoid it in files and directory names. They bring non obvious headaches.

Answer 3

Thanks so much, so hypen is the answer, and em dash and dash are not needed for programming.