Question

I want check if there is not class .myclass2 in classs .myclass1 alert ok but it don’t work in my try:

DEMO: http://jsfiddle.net/uyKvh/

<div class="myclass1">
    <div class="myclass2">1</div>
</div>
<div class="myclass1">
    <div class="myclass2">1</div>
</div>



if($(".myclass1:not(:has(.myclass2))")){
    alert('ok');
}

Answer 1

Any jquery selector returns an object, so it always evaluates to true.

Use the length to check if results were returned..

if( $(".myclass1:not(:has(.myclass2))").length ){
    alert('ok');
}

demo at http://jsfiddle.net/gaby/uyKvh/4/