fix(deepClone): Fixed problems with array values

Would previously create an object with indices as keys. Now properly clones as array.

#658

test/deepClone/deepClone.js

@@ -1,8 +1,16 @@
 const deepClone = obj => {
+if (Array.isArray(obj)){
+let arr = [];
+obj.forEach(
+(i,v) => (arr[i] = typeof v === 'object' ? deepClone(v) : v)
+)
+return arr;
+}else {
 let clone = Object.assign({}, obj);
 Object.keys(clone).forEach(
 key => (clone[key] = typeof obj[key] === 'object' ? deepClone(obj[key]) : obj[key])
 );
 return clone;
+}
 };
 module.exports = deepClone;