Woocommerce functions

functions.php

//change woocommerce columns number 

function theme_name_woocommerce_loop_shop_columns($nc){
  return 3; //number of columns here 
}
add_filter("loop_shop_columns", "theme_name_woocommerce_loop_shop_columns");


//exclude/hide/remove woocommerce products from shop page

function theme_name_woocoomerce_exclude_products($wq){
  $wq->set("post__not_in", array(21,25)); //products ID, those products will be hide from shop page
}
add_filter("woocommerce_product_query", "theme_name_woocoomerce_exclude_products");


//exclude products by category name 
function theme_name_exclude_category_products($wq){
  $tax_query = (array)$wq->get('tax_query');
  $tax_query[] =array(
    'taxonomy'  => 'product_cat';
    'field'      => 'slug',
    'terms'      => array('category_name'),
    'operator'   => 'NOT IN'
); 
$wq->set('tax_query', $tax_query);
return $wq;
}
add_filter('woocommerce_product_query', 'theme_name_exclude_category_products);