import getFormElementType from './getFormElementType';

function selectValues(node) {

    let result = [];
    let index = node.selectedIndex;
    let option;
    let options = node.options;
	let length = options.length;
    let i = index < 0 ? length : 0;

    for (; i < length; i++) {

        option = options[i];
        // IMPORTANT! IE9 doesn't update selected after form reset
        if ((option.selected || i === index) &&
            // Don't return options that are disabled or in a disabled optgroup
            !option.disabled && (!option.parentNode.disabled || option.parentNode.nodeName !== 'OPTGROUP')) {
            result.push(option.value);
        }
    }
    return result;
}

export default function getFormElementValues(node) {

    const name = getFormElementType(node);

    switch (name) {
        case 'checkbox':
        case 'radio':
            if (node.checked) {
                return true;
            }
            return false;
        case 'select-multiple':
            return selectValues(node);
        default:
            return node.value;
    }
}
import getFormElementType from './getFormElementType';

function selectValues(node) {

    let result = [];
    let index = node.selectedIndex;
    let option;
    let options = node.options;
	let length = options.length;
    let i = index < 0 ? length : 0;

    for (; i < length; i++) {

        option = options[i];
        // IMPORTANT! IE9 doesn't update selected after form reset
        if ((option.selected || i === index) &&
            // Don't return options that are disabled or in a disabled optgroup
            !option.disabled && (!option.parentNode.disabled || option.parentNode.nodeName !== 'OPTGROUP')) {
            result.push(option.value);
        }
    }
    return result.length === 0 ? null : result;
}

export default function getFormElementValues(node) {

    const name = getFormElementType(node);

    switch (name) {
        case 'checkbox':
        case 'radio':
            if (node.checked) {
                return true;
            }
            return false;
        case 'select-multiple':
            return selectValues(node);
        default:
            return node.value;
    }
}
--- 
+++ 
@@ -19,7 +19,7 @@
             result.push(option.value);
         }
     }
-    return result.length === 0 ? null : result;
+    return result;
 }
 
 export default function getFormElementValues(node) {
Return empty array instead of null here
