问题
When running my JavaScript through JSLint, I get the following two errors from the same line of code.
Problem at line 398 character 29: Insecure '.'.
if (password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/))
Problem at line 398 character 41: Unescaped '^'.
if (password.match(/.[!,@,#,$,%,^,&,*,?,_,~,-,(,)]/))
I understand that JSLint may be being "over-cautious". I read the comments on a similar question, Purpose of JSLint "disallow insecure in regex" option.
Nonetheless, I would like to have the best of all worlds, and have a working regular expression that also doesn't cause JSLint to complain.
But I fail at regex.
Is it possible to make regular expression that looks for the presence of at least one special character, yet doesn't cause JSLint to complain?
回答1:
That's a character class; you don't need a separator (eg: the commas). You can clean up the regex by placing the caret (^) and the dash (-) in strategic positions so they don't need to be escaped.
/[!@#$%^&*?_~()-]/
Should work. You can also use the non-word character class:
/\W/
That matches anything that's not a letter (a-zA-Z), number (0-9) or underscore (_).
来源：https://stackoverflow.com/questions/3757697/is-there-a-way-to-make-jslint-happy-with-this-regex