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24 ways to impress your friends

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Jonathon Oates

Thanks for a fantastic essay tut!

One thing I found with your RegEx was that the whitespace (`s`) wasn’t escaped. I was trying with this for ages in Safari and Chrome (latest versions) and the RegEx would just never find a match in the `className` string.

I found double escaping the `s` special character worked a treat though ;-) as per:

So the RegEx I’ve ended up with (just for completeness) is:

var regEx = new RegExp(‘(\s|^)’ + activeClassName + ‘(\s|$)’);

Was this just a publishing error or should have your solution worked?

Thanks again,