How to allow only "numbers","-" and "()" using JavaScript

I开发者_运维技巧 have to do phone number validation using JavaScript.

I have already done validation for numbers as follows,

  
var filter =/^[0-9]+$/

But now I have to also allow hyphen and "()".

Please provide me a way for the same.

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How about:

/^[0-9()-]+$/

Notes:

• Parenthesis have no special meaning in a character set
• If you start, or end, with a minus-sign, it is not interpreted as a range, but as the minus-character itself