Show or hide checkout fields based on shipping method in Woocommerce at IE


Thanx to LoicTheAztec got code to hide checkout fields based on shipping method from here Show or hide checkout fields based on shipping method in Woocommerce 3

Checked in all browsers - working correctly, but in Internet Explorer 11 (IE) - it isnt working. Maybe there is any fix for that

// Conditional Show hide checkout fields based on chosen shipping methods
add_action( 'wp_footer', 'custom_checkout_field_script' );
function custom_checkout_field_script() {

    // HERE your shipping methods rate IDs
    $local_pickup = 'local_pickup:20';
    $pickpoint = 'wc_custom_shipping_pickpoint';

    $required_text = esc_attr__( 'required', 'woocommerce' );
    $required_html = '<abbr class="required" title="' . $required_text . '">*</abbr>';
    ?>
    <script>
        jQuery(function($){
            var ism = 'input[name^="shipping_method"]',         ismc = ism+':checked',
                csa = 'input#ship-to-different-address-checkbox',
                rq = '-required',       vr = 'validate'+rq,     w = 'woocommerce',      wv = w+'-validated',
                iv = '-invalid',        fi = '-field',          wir = w+iv+' '+w+iv+rq+fi,
                b = '#billing_',        s = '#shipping_',       f = '_field',
                a1 = 'country',     a2 = 'address_1',   a3 = 'address_2',   a4 = 'postcode',    a5 = 'state',
                b1 = b+a1+f,        b2 = b+a2+f,        b3 = b+a3+f,        b4 = b+a4+f,        b5 = b+a5+f,
                s1 = s+a1+f,        s2 = s+a2+f,        s3 = s+a3+f,        s4 = s+a4+f,        s5 = s+a5+f,
                pickPoint = '<?php echo $pickpoint; ?>',        localPickup = '<?php echo $local_pickup; ?>';

            // Utility function to shows or hide checkout fields
            function showHide( action='show', selector='' ){
                if( action == 'show' )
                    $(selector).show(function(){
                        $(this).addClass(vr);
                        $(this).removeClass(wv);
                        $(this).removeClass(wir);
                        if( $(selector+' > label > abbr').html() == undefined )
                            $(selector+' label').append('<?php echo $required_html; ?>');
                    });
                else
                    $(selector).hide(function(){
                        $(this).removeClass(vr);
                        $(this).removeClass(wv);
                        $(this).removeClass(wir);
                        if( $(selector+' > label > abbr').html() != undefined )
                            $(selector+' label > .required').remove();
                    });
            }

            // Initializing at start after checkout init (Based on the chosen shipping method)
            setTimeout(function(){
                if( $(ismc).val() == pickPoint ) // Chosen "Pick point" (Hiding "Delivery")
                {
                    showHide('show',b1 ); // Country
                    showHide('hide',b2 ); // Address 1
                    showHide('hide',b3 ); // Address 2
                    showHide('hide',b4 ); // Postcode
                    showHide('hide',b5 ); // State
                }
                else if( $(ismc).val() == localPickup ) // Choosen "Local pickup" (Hidding "Take away")
                {
                    showHide('hide',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('hide',b4);
                    showHide('hide',b5);
                }
                else
                {
                    showHide('show',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('show',b4);
                    showHide('show',b5);
                }
            }, 100);

            // When shipping method is changed (Live event)
            $( 'form.checkout' ).on( 'change', ism, function() {
                if( $(ismc).val() == pickPoint )
                {
                    showHide('show',b1);
                    showHide('hide',b2);
                    showHide('hide',b3);
                    showHide('hide',b4);
                    showHide('hide',b5);

                    if( $(csa).prop('checked') ) {
                        showHide('show',s1);
                        showHide('hide',s2);
                        showHide('hide',s3);
                        showHide('hide',s4);
                        showHide('hide',s5);
                    }
                }
                else if( $(ismc).val() == localPickup )
                {
                    showHide('hide',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('hide',b4);
                    showHide('hide',b5);

                    if( $(csa).prop('checked') ) {
                        showHide('hide',s1);
                        showHide('show',s2);
                        showHide('show',s3);
                        showHide('hide',s4);
                        showHide('hide',s5);
                    }
                }
                else
                {
                    showHide('show',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('show',b4);
                    showHide('show',b5);

                    if( $(csa).prop('checked') ) {
                        showHide('show',s1);
                        showHide('show',s2);
                        showHide('show',s3);
                        showHide('show',s4);
                        showHide('show',s5);
                    }
                }
            });

            // When "shipping to different address" is changed (Live event)
            $(csa).click( function() {
                if( $(ismc).val() == pickPoint && $(this).prop('checked') )
                {
                    showHide('show',b1);
                    showHide('hide',b2);
                    showHide('hide',b3);
                    showHide('hide',b4);
                    showHide('hide',b4);

                    showHide('show',s1);
                    showHide('hide',s2);
                    showHide('hide',s3);
                    showHide('hide',s4);
                    showHide('hide',s5);
                }
                else if( $(ismc).val() == localPickup && $(this).prop('checked') )
                {
                    showHide('hide',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('hide',b4);
                    showHide('hide',b4);

                    showHide('hide',s1);
                    showHide('show',s2);
                    showHide('show',s3);
                    showHide('hide',s4);
                    showHide('hide',s5);
                }
                else
                {
                    showHide('show',b1);
                    showHide('show',b2);
                    showHide('show',b3);
                    showHide('show',b4);
                    showHide('show',b4);

                    showHide('show',s1);
                    showHide('show',s2);
                    showHide('show',s3);
                    showHide('show',s4);
                    showHide('show',s5);
                }
            });
        });
    </script>
    <?php
}

// Checkout conditional fields validation
add_action('woocommerce_checkout_process', 'wps_select_checkout_field_process');
function wps_select_checkout_field_process() {
    // HERE your shipping methods rate IDs
    $local_pickup = 'local_pickup:20';
    $pickpoint    = 'wc_custom_shipping_pickpoint';


    $chosen_shipping_method = WC()->session->get( 'chosen_shipping_methods' )[0];
    $billing                = '<strong> ' . __('Billing', 'woocommerce') . ' ';
    $shipping               = '<strong> ' . __('Shipping', 'woocommerce') . ' ';
    $country                = __('country.', 'woocommerce');
    $address1               = __('address.', 'woocommerce');
    $postcode               = __('postcode.', 'woocommerce');
    $state                  = __('state.', 'woocommerce');
    $end_text               = '</strong> '. __('is a required field.', 'woocommerce');

    if( $chosen_shipping_method == $local_pickup ) {
        if( empty($_POST['billing_address_1']) )
            wc_add_notice( $billing . $address1 . $end_text, 'error' );

        if( $_POST['ship_to_different_address'] ){
            if( empty($_POST['shipping_address_1']) )
                wc_add_notice( $shipping . $address1 . $end_text, 'error' );
        }
    }
    elseif( $chosen_shipping_method == $pickpoint ) {
        if( empty($_POST['billing_country']) )
            wc_add_notice( $billing . $country . $end_text, 'error' );

        if( $_POST['ship_to_different_address'] ){
            if( empty($_POST['shipping_country']) )
                wc_add_notice( $shipping . $country . $end_text, 'error' );
        }
    }
    else {
        if( empty($_POST['billing_country']) )
            wc_add_notice( $billing . $country . $end_text, 'error' );

        if( empty($_POST['billing_address_1']) )
            wc_add_notice( $billing . $address1 . $end_text, 'error' );

        if( empty($_POST['billing_postcode']) )
            wc_add_notice( $billing . $postcode . $end_text, 'error' );

        if( empty($_POST['billing_state']) )
            wc_add_notice( $billing . $state . $end_text, 'error' );

        if( $_POST['ship_to_different_address'] ){
            if( empty($_POST['shipping_country']) )
                wc_add_notice( $shipping . $country . $end_text, 'error' );

            if( empty($_POST['shipping_address_1']) )
                wc_add_notice( $shipping . $address1 . $end_text, 'error' );

            if( empty($_POST['shipping_postcode']) )
                wc_add_notice( $shipping . $postcode . $end_text, 'error' );

            if( empty($_POST['shipping_state']) )
                wc_add_notice( $shipping . $state . $end_text, 'error' );
        }
    }
}

- - Source
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