How do you check if a JavaScript Object is a DOM Object?

Question

I\'m trying to get:

document.createElement(\'div\')  //=> true
{tagName: \'foobar something\'}  //=> false

In my own scripts, I used

Answer 1

var IsPlainObject = function ( obj ) { return obj instanceof Object && ! ( obj instanceof Function || obj.toString( ) !== '[object Object]' || obj.constructor.name !== 'Object' ); },
    IsDOMObject = function ( obj ) { return obj instanceof EventTarget; },
    IsDOMElement = function ( obj ) { return obj instanceof Node; },
    IsListObject = function ( obj ) { return obj instanceof Array || obj instanceof NodeList; },

// In fact I am more likely t use these inline, but sometimes it is good to have these shortcuts for setup code