Invalid regex naming example

[lewisje]

In 6.A.3.5, rDesc = //; should be rDesc = /(?:)/; because two forward slashes in succession begins a single-line comment, and because the empty non-capturing group is well known to be the minimal regex literal; it has been mentioned in the ECMAScript standard since ES3, and in most browsers, String(RegExp('')); returns "/(?:)/" (try it out in the console).