ran npm run tdd

test/merge/merge.js

@@ -0,0 +1,9 @@
+module.exports = merge = (...objs) =>
+[...objs].reduce(
+(acc, obj) =>
+Object.keys(obj).reduce((a, k) => {
+acc[k] = acc.hasOwnProperty(k) ? [].concat(acc[k]).concat(obj[k]) : obj[k];
+return acc;
+}, {}),
+{}
+);