dist/flow.js
function (domNodes) {
      if (typeof domNodes.length === 'undefined') {
        domNodes = [domNodes];
      }
      each(domNodes, function (domNode) {
        domNode.addEventListener('dragover', this.preventEvent, false);
        domNode.addEventListener('dragenter', this.preventEvent, false);
        domNode.addEventListener('drop', this.onDrop, false);
      }, this);
    }
function (domNodes) {
      if (typeof domNodes.length === 'undefined') {
        domNodes = [domNodes];
      }
      each(domNodes, function (domNode) {
        domNode.addEventListener('dragover', this.preventEvent, false);
        domNode.addEventListener('dragenter', this.preventEvent, false);
        domNode.addEventListener('drop', this.onDrop, false);
      }, this);
    }
Assign one or more DOM nodes as a drop target.
@function
@param {Element|Array.<Element>} domNodes