Magento 2 how to display shipping methods sort order by price?

Question

Hi we would like to sort and display the shipping methods by price Low to High on checkout page.

For example:

$31.72  Express Saver Federal Express
$37.50  2 DayFederal Express
$80.47  Standard Overnight Federal Express
$87.77  Priority Overnight Federal Express
$5.00   Fixed Flat Rate
$5.00   Media Mail Select Shipping Method
$10.00  FedEx Home Delivery Select Shipping Method

Referring this plugin concept trying to change my output using plugin. Magento 2: Hide other shipping methods when free shipping is available

<?php
namespace Demo\Test\Plugin\Model;
use Magento\Framework\Session\Generic;


class ShippingMethodManagement {

    /**
     * @var Generic
    */
    private $coreSession;

    /**
     * @param \Magento\Framework\Session\Generic $sessionManager
    */
    public function __construct(
        Generic $sessionManager
    ) {
        $this->coreSession = $sessionManager;    
    }

    public function afterEstimateByExtendedAddress($shippingMethodManagement, $output)
    {
        return $this->filterOutput($output);
    }
    public function afterEstimateByAddress($shippingMethodManagement, $output)
    {
        return $this->filterOutput($output);
    }
    public function afterEstimateByAddressId($shippingMethodManagement, $output)
    {
        return $this->filterOutput($output);
    }
    private function filterOutput($output)
    {
       //Here i would like to sort shipping methods by shipping amount
     
        $all = [];
        
            foreach ($output as $shippingMethod) {               

                $all[] = $shippingMethod;
            } 

            return $all;
        } 
    }
}

Answer 1

The below logic works for me.

    <?php
    namespace Demo\Test\Plugin\Model;
    use Magento\Framework\Session\Generic;
    
    
    class ShippingMethodManagement {
    
        /**
         * @var Generic
        */
        private $coreSession;
    
        /**
         * @param \Magento\Framework\Session\Generic $sessionManager
        */
        public function __construct(
            Generic $sessionManager
        ) {
            $this->coreSession = $sessionManager;    
        }
    
        public function afterEstimateByExtendedAddress($shippingMethodManagement, $output)
        {
            return $this->filterOutput($output);
        }
        public function afterEstimateByAddress($shippingMethodManagement, $output)
        {
            return $this->filterOutput($output);
        }
        public function afterEstimateByAddressId($shippingMethodManagement, $output)
        {
            return $this->filterOutput($output);
        }
        private function filterOutput($output)
        {
           //Here i would like to sort shipping methods by shipping amount
         
            $all = [];
            
                foreach ($output as $shippingMethod) {               
    
                    $all[$shippingMethod->getAmount()] = $shippingMethod;
                } 
                ksort($all);    
                return $all;
          } 
        
    }

Answer 2

Not sure what the shipping cost attribute would be called (you may need to debug) however assuming it is 'price' this should work. Add this above the return :

usort($all, function($a,$b){
     return $a->price > $b->price;
});
return $all;