RegExpr advice needed - remove all chars from string except of numbers (0-9) and "/"

Question

I need some advice using the RegExp Object.

It should only return numbers and the character "/" from the variable val ... I'm not experienced in the RegExp Object - this is what I got so far:

var val = $('.gallerystatus input').val();

var regExpr = new RegExp("^\d*\.?\d*$");

$('.gallerystatus input').val(  only 0-9 and "/"  );

Thanks for any advice!

Answer 1

This should do the trick

value = value.replace(/[^\/\d]/g,'');

The trick is the ^ symbol. When it's inside a [] character class, the ^ is a negation operator for the class.

So in this example, the [] class is matching every character except slash and digits.

See it in action here: http://jsfiddle.net/5gMNg/