php - Check a multidimensional array input in javascript -


i have input type hidden in loop, it's multidimensional array , has 1 input name.
how can check if there value in it? value or element?

code: (the array generated in php in loop)

echo "<td class='$border'>     <div class='dropzonepers'></div>     <input type='hidden' value='' name='pers[$dag][$j]'/> </td>";

what have tried in js:

if($(".pers").length !> 0) {    alert("no!");    return false; }

how can that?

grab input elements have name starts "pers" , see if not empty

function persisempty() {     var empty = true;     $('input[type="hidden"][name^="pers"]').each(function () {         if ($(this).val().length > 0 && $(this).val() != '') {             empty = false;         }     });     return empty; }

//...so like

if (persisempty()) {     alert("no!");     return false; }

see: https://css-tricks.com/attribute-selectors/


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