Reference for /[~]/ notation

as in: var patt1 = /[~]/;

I can’t find a ref.


Unless I’m missing something, it’s a (pretty pointless) regular expression.
It’ll match the first occurrence of the the literal character ~
The square brackets (used to define a character class) are superfluous.

What exactly are you having trouble with?

No trouble. I didn’t recognize is as a regular expression.

Thanks for the direction.