You've had more than eight years, you're still here, and it's still not fixed.

That rocks. The lookahead and keeping matches techniques are essentials.

nice used the output of the modulo operator for the 1 and 0. Very slick.

Some people, when confronted with a problem, think "I know, I'll use regular expressions." Now they have two problems.

in js Boolean(" ") return TRUE and Boolean(undefined) return FALSE, if the condition throw a false condition the string will be a space string.

\d for digits! Thank you

Would fail on "\n"

good!

Thanks so much! I did the most inefficient solution and had no idea this existed. I was reading all about 'regex' but still was coming up dry.

I noticed that the description only applies when the string length is odd, otherwise it should be completely trimmed.

shortest one yet
bravo!

Same problem here.