According to http://www.wix.com/code/reference/wix-data.html, “[y]ou can refine the query by chaining WixDataQuery functions on to the query.”
In response, would replacing your code with the following work for you:
import wixData from ‘wix-data’;
export function search_click(event, $w) {
console.log($w(’ #location ‘).value);
$w(’ #dataset1 ‘).setFilter(
wixData.filter()
.eq(“location”, $w(’ #location ‘).value))
.eq(“dealtype”, $w(’ #dealtyp ‘).value))
.eq(“price”, $w(’ #price ‘).value)
);
$w(’ #dataset1 ').refresh();
}
?