How to check null objects in jQuery

Question

I\'m using jQuery and I want to check the existence of an element in my page. I have written following code, but it\'s not working:

if($(\"#btext\" + i) != n         


        

Answer 1

jquery $() function always return non null value - mean elements matched you selector cretaria. If the element was not found it will return an empty array. So your code will look something like this -

if ($("#btext" + i).length){
        //alert($("#btext" + i).text());
    $("#btext" + i).text("Branch " + i);
}