Question

I’ve got this

    if ($("#sidebar .box_cuerpo").height() == "0") {
           //blaaa
    }

But sometimes on other pages inside site there are more than one “#sidebar .box_cuerpo ” elements… and also some are not height 0.

is it possible to check on all elements and if almost one is height 0 that statement it’s true?

Answer 1

You can use the .filter method to reduce the collection.
.filter executes the given function for each element in the collection. If the function returns true, the element is kept. Otherwise (false), the element is discarded.

if ($("#sidebar .box_cuerpo").filter(function() {
    return $(this).height() === 0;
}).length) {
    //blaaa
}