on main page I have products grid and I have add to cart button with such code
<a href="/?add-to-cart=2609" data-quantity="1" class="button product_type_simple add_to_cart_button ajax_add_to_cart" data-product_id="2609" ...
I want to replace it with button
<button data-quantity="1" class="button product_type_simple add_to_cart_button ajax_add_to_cart" data-product_id="2609" ...
How could I?
You should to add the "woocommerce_loop_add_to_cart_link" filter inside functions.php
add_filter( 'woocommerce_loop_add_to_cart_link', 'loop_add_to_cart_link_change_tag', 10, 3 );
function loop_add_to_cart_link_change_tag( $link_code, $product, $args ) {
$r = array(
'<a ' => '<button ',
'</a>' => '</button>'
);
return strtr($link_code, $r);
}