jQuery match part of class with hasClass

Question

I have several div\'s with \"project[0-9]\" classes:

Answer 1

$('div[class^="project"]')

will fail with something like this:

Here is an alternative which extends jQuery:

// Select elements by testing each value of each element's attribute `attr` for `pattern`.

  jQuery.fn.hasAttrLike = function(attr, pattern) {

    pattern = new RegExp(pattern)
    return this.filter(function(idx) {
      var elAttr = $(this).attr(attr);
      if(!elAttr) return false;
      var values = elAttr.split(/\s/);
      var hasAttrLike = false;
      $.each(values, function(idx, value) {
        if(pattern.test(value)) {
          hasAttrLike = true;
          return false;
        }
        return true;
      });
      return hasAttrLike;
    });
  };



jQuery('div').hasAttrLike('class', 'project[0-9]')

original from sandinmyjoints: https://github.com/sandinmyjoints/jquery-has-attr-like/blob/master/jquery.hasAttrLike.js (but it had errrors so I fixed it)