Question: How can I determine if some particular div has any child existed inside dom

```
<div class="profile-feed row">
   <div class="col-sm-6"> </div> // does this particular div has any child?
...
</div>

```

Answer: 
use this 

```
var count = $(".col-sm-6").children().length;

```

If you have multiple elements with this class, this method will return number of all children's from all elements with this id. To be more specific, i suggest to use id selector or add the parent selector. Please see this example on JSFiddle <http://jsfiddle.net/9qa1qm9s/>
you can use jQuery's `children()`

```
var kids = $('.col-sm-6').children();
if(kids.length > 0) {
    alert('has children')
}

```

further information here: [jQuery Children](https://api.jquery.com/children/)