Replace ES2015 features unsupported in Node.js 4

Author: hudochenkov

lib/validateOptions.js

@@ -12,15 +12,19 @@ module.exports = function validateOptions(options) {
 	}
 
 	if (!_.isUndefined(options.order) && !_.isNull(options.order)) {
-		const { isValid, message } = validateOrder(options.order);
+		const validatedOrder = validateOrder(options.order);
+		const isValid = validatedOrder.isValid;
+		const message = validatedOrder.message;
 
 		if (!isValid) {
 			return reportInvalidOption('order', message);
 		}
 	}
 
 	if (!_.isUndefined(options['properties-order']) && !_.isNull(options['properties-order'])) {
-		const { isValid, message } = validatePropertiesOrder(options['properties-order']);
+		const validatedPropertiesOrder = validatePropertiesOrder(options['properties-order']);
+		const isValid = validatedPropertiesOrder.isValid;
+		const message = validatedPropertiesOrder.message;
 
 		if (!isValid) {
 			return reportInvalidOption('properties-order', message);
@@ -31,9 +35,11 @@ module.exports = function validateOptions(options) {
 		!_.isUndefined(options['unspecified-properties-position']) &&
 		!_.isNull(options['unspecified-properties-position'])
 	) {
-		const { isValid, message } = validateUnspecifiedPropertiesPosition(
+		const validatedUnspecifiedPropertiesPosition = validateUnspecifiedPropertiesPosition(
 			options['unspecified-properties-position']
 		);
+		const isValid = validatedUnspecifiedPropertiesPosition.isValid;
+		const message = validatedUnspecifiedPropertiesPosition.message;
 
 		if (!isValid) {
 			return reportInvalidOption('unspecified-properties-position', message);