How to check Developer tool window open

http://stackoverflow.com/questions/7798748/find-out-whether-chrome-console-is-open

In my case,

	function isInspectOpen()
	{
	console.profile();
	console.profileEnd();
	if (console.clear) console.clear();
	return console.profiles.length > 0;
	}

view raw check1.js hosted with ❤ by GitHub

	window.onresize = function()
	{
	if ((window.outerHeight - window.innerHeight) > 100)
	alert('Docked inspector was opened');
	}

view raw check2.js hosted with ❤ by GitHub

	var checkStatus;
	var element = new Image();
	// var element = document.createElement('any');
	element.__defineGetter__('id', function() {
	checkStatus = 'on';
	});
	setInterval(function() {
	checkStatus = 'off';
	console.log(element);
	console.clear();
	document.querySelector('#devtool-status').innerHTML = checkStatus;
	}, 1000)

view raw check3.js hosted with ❤ by GitHub

	var element = new Image();
	Object.defineProperty(element, 'id', {
	get: function () {
	/* TODO */
	alert('囧');
	}
	});
	console.log('%cHello', element);

view raw check4.js hosted with ❤ by GitHub

I use check4.js

check1.js, check2.js code can't check developer tools open event.
check3.js code check using setInterval() function.

check4.js
code use Object definedProperty() function on get() function.
console.log("%c hello", element)

When console.log called, element object call get() function.
And you can check developer tools open

Happy Coding!