How to Empty Price display on cart button WordPress, WooCommerce?

Add Following code to "function.php" file


function custom_woocommerce_is_purchasable( $purchasable, $product ){
    if( $product->get_price() == 0 ||  $product->get_price() == '')
        $purchasable = true;
    return $purchasable;
}
add_filter( 'woocommerce_is_purchasable', 'custom_woocommerce_is_purchasable', 10, 2 );

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