Code-Snippets-Functions/Execute a function on a child site/WooCommerce/display-in-stock-for-availability-text.txt

add_filter( 'woocommerce_get_availability_text', 'wc_display_in_stock', 10 );

function wc_display_in_stock( $availability ) {
    if ( empty( $availability ) ) {
        $availability = esc_html__( 'In Stock' );
    }
    return $availability;
}