jQuery - select all elements with attribute name (not value) beginning with…?

Question

Say I\'m looking for all elements with an attribute \'data-language\', whose value begins with \'java\' (would match both \'java\' and \'javascript\'). I know how to do this

Answer 1

jQuery has a nice function for this.

http://api.jquery.com/data/

$("div").data() // returns all data attributes to this div

Answer 2

There is no shortcut, you may use the attributes collection :

 $(someselector).filter(function(){
      var attrs = this.attributes;
      for (var i=0; i<attrs.length; i++) {
          if (attrs[i].name.indexOf("someStartOfName")==0) return true;
      }         
      return false;
 });