Let's suppose I have

```
var testHTML = "<div id='demo_div'></div>";

```

I want to get above **div** as JQuery object to manipulate with it. I try to find it with:

```
 var found = $(testHTML).find("#demo_div");

```

and with:

```
 var found = $(testHTML).find("div");

```

Both without luck. I have empty *found* variable. What am I do wrong?

**P.S.** Yes I know I can have direct access to my **div** with 

```
$("#demo_div") 

```

but I can't do it in my case - I need to get it from plain HTML that will be assigned to some variable just like in my example with *testHTML* var.

**UPDATE:** 
Even if I have not root **div** element like here:

```
var testHTML = "<html><div id='demo_div'></div></html>";

```

I can't use *find* for navigating *div* element.