alex.mo.07 alex.mo.07 - 1 year ago 47
HTML Question

Using :data attribute as a selector to filter elements

I am trying to use a custom data attribute to filter things via dropdown selections. I can't seem to get the selector to work correctly, and was just wondering if that is actually possible. Currently looking at https://api.jqueryui.com/data-selector/ but I can't seem to get it to work.

My HTML:

<div class="item-filter">
<form>
<select id="item-filter-select">
<option value="all" id="all">Show All</option>
<option value="clothes" id="clothes">Clothing</option>
<option value="jewelry" id="jewelry">Jewelry</option>
<option value="misc" id="misc">Miscellaneous</option>
</select>
</form>
</div>

<div class="item-display" id="item-display">

<div class="item clothes" id="item-clothes" data-type="clothes" data-name="Sweater01" data-price="15">
<span>Clothes</span><br>
<a href="#" class="add-item" id="item01">Add to Cart</a>
</div>

<div class="item jewelry" id="item-jewelry" data-type="jewelry" data-name="Necklace01" data-price="5">
<span>Jewelry</span><br>
<a href="#" class="add-item" id="item02">Add to Cart</a>
</div>

<div class="item misc" id="item-misc" data-type="misc" data-name="PhoneCase01" data-price="10">
<span>Misc</span><br>
<a href="#" class="add-item" id="item03">Add to Cart</a>
</div>

<div class="clear"></div>
</div>


My JS:

$( document ).ready(function() {
// Handler for .ready() called.


$('#item-filter-select').change(function() {

var clothes = $( "div:data(type, clothes)" );

if($(this).val() === 'clothes'){
clothes.hide();
console.log("You selected clothes");
}
else if($(this).val() === 'jewelry'){
console.log("You selected jewelry");
}
else if($(this).val() === 'misc'){
console.log("You selected miscellaneous");
}
else {
console.log("You are showing all");
}
});

});


I just want to hide the elements associated to the data type "selected" (I will eventually use the :not selector to hide elements that don't match) but for now I just need to get the selectors to work properly. Thank you for any help!

Answer Source

Just use the selects value directly to target the elements with the correct data attribute

$(document).ready(function () {
    $('#item-filter-select').on('change', function () {
        if (this.value == 'all') {
            $('.item').show();
        }else{
            var elems = $('.item[data-type="'+this.value+'"]');
            $('.item').not(elems).hide();
            elems.show();
        }
    });
});

FIDDLE

or a shorter version of the above

$(document).ready(function () {
    $('#item-filter-select').on('change', function () {
        var elems = this.value == 'all' ? $('.item') : $('.item[data-type="'+this.value+'"]');
        $('.item').not(elems.show()).hide();
    });
});

FIDDLE