Comma separated words Regex (html input pattern)

user_13033540 0
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im trying to force the user to input comma seperated words and reject any white space seperated words using the pattern attribute thats part of the HTML5 <input/> tag .

My following Expression expression doesn't work even though this says it does when I plug it in and test it.

My expression : ^((([a-zA-Z]\s*)+)\, ?(([a-zA-Z]\s*)+))$

<div class="col-md-6">

    <input type="text" id="traits" name = "traits" class="form-control"  placeholder = "crazy, hyper, outgoing" pattern="^((([a-zA-Z]\s*)+)\, ?(([a-zA-Z]\s*)+))$" required>

</div>
validation input html regex
1 Answers

This allows only comma separated words:

^[a-zA-Z]+(,[a-zA-Z]+)*$

No spaces allowed, no more than one comma at a time, and commas should be only between words.

Demo

user_2798060
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