javascript - Why isn't this a valid regular expression? - Stack Overflow

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This was just working a day ago but now throwing exception. I've pasted regex into online verifier and it looks good?

What am I missing?

<input type="text" class="form-control" name="nickname" id="nickname" value="Alicia"
       pattern="[\w\s\-\(\)\!\,\.]{3,45}">

Pattern attribute value [\w\s\-\(\)\!\,\.]{3,45} is not a valid regular expression: Uncaught SyntaxError: Invalid regular expression: /[\w\s\-\(\)\!\,\.]{3,45}/: Invalid escape

Thanks for the help!

Casey

This was just working a day ago but now throwing exception. I've pasted regex into online verifier and it looks good?

What am I missing?

<input type="text" class="form-control" name="nickname" id="nickname" value="Alicia"
       pattern="[\w\s\-\(\)\!\,\.]{3,45}">

Pattern attribute value [\w\s\-\(\)\!\,\.]{3,45} is not a valid regular expression: Uncaught SyntaxError: Invalid regular expression: /[\w\s\-\(\)\!\,\.]{3,45}/: Invalid escape

Thanks for the help!

Casey

• javascript
• regex
• html

Share Improve this question Follow edited Sep 22, 2016 at 0:15 Phil 165k2525 gold badges262262 silver badges267267 bronze badges asked Sep 21, 2016 at 23:58 cphcph 45822 gold badges66 silver badges2424 bronze badges 0

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1 Answer 1

Sorted by: Reset to default 6

Looks valid to me though Chrome does indeed plain.

In any case, you don't need to escape all those characters within a character class. You should be able to use

pattern="[\w\s()!,.-]{3,45}"

which seems to work ok for me.

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