remove element by class

remove-dom-by-class

    function removeDomByClass( classname ) {
      var boxes = document.getElementsByClassName( classname );
      for ( var i = 0, l = boxes.length; i < l; i++ ) {
        var box = boxes[0];
        if ( box && box.parentNode ) {
          box.parentNode.removeChild( box );
        }
      }
    }

    function removeDomByClass2( classname ) {
      var boxes = document.getElementsByClassName( classname );
      while ( boxes.length ) {
        var box = boxes[0];
        box.parentNode.removeChild( box );
      }  
    }

    function removeDomByClass3( classname ) {
      var boxes = document.querySelectorAll( '.' + classname );
      for ( var i = 0; i < boxes.length; i++ ) {
        var box = boxes[i];
        box.parentNode.removeChild( box );
      }
    }