So that when filtering prices in the WooCommerce CMS online store of the WordPress standard filter system, automatic filtering occurs without clicking a button, you can insert this js code into the file with js scripts of your theme:
jQuery( document ).ready(function($) {
var priceSliderElements = $('.price_slider');
var priceFilterFormSubmit = $('.widget.woocommerce.widget_price_filter .button[type="submit"]');
priceSliderElements.on('click', function() {
priceFilterFormSubmit.click();
})
});
As a result, when you change the price filter in WooCommerce, products will be automatically filtered.