Wix Code | How to Create a Search for Store Product Database

Hi Forum Ninja !!!
I need to Create a Search for Store Product Database like here - https://www.youtube.com/watch?v=Hx7_8-lRsW0&feature=youtu.be
It’s possible?
What’s I should add to the code. Please help me, I’m just a blond…)))
I don’t need search, only sort products by category…)))

export function Dropdown_change(event, $w) {
filter(lastFilterTitle, $w(‘#Dropdown’).value);
}

function filter(title, continent) {
if (lastFilterTitle !== title || lastFilterContinent !== continent) {
let newFilter = wixData.filter();
if (title)
newFilter = newFilter.contains(‘articleTitle’, title);
if (continent)
newFilter = newFilter.contains(‘continent’, continent);
$w(‘#dataset1’).setFilter(newFilter);
lastFilterTitle = title;
lastFilterContinent = continent;
}
}

function loadContinents() {
wixData.query(‘Continents’)
.find()
.then(res => {
let options = [{“value”: ‘’, “label”: ‘All Continents’}];
options.push(…res.items.map(continent => {
return {“value”: continent.title, “label”: continent.title};
}));
$w(‘#Dropdown’).options = options;
});

}

Sort like here…-