Snippets?

Hello, I’m trying to run a js code from a “Snippet”. in the snippets’ tag it says that the shortcode should be [snippet_N] where N is a number from 1 to 5. Strangely enough the only snippet field available is named Snippet 6…?
Anyway, if I try with [snippet_6] or [snippet_1] it still doesn’t work.
The code i’ve added is: $('body').on('touchstart', function() {});
but instead it only reads “[snippet_1]” or “[snippet_6]” in the front end.
Can you help me please?