Update unflattenObject.md

snippets/unflattenObject.md

@@ -6,18 +6,25 @@ tags: object,advanced
 Unflatten an object with the paths for keys.
 
 - Use nested `Array.prototype.reduce()` to convert the flat path to a leaf node.
-- Split each key with a dot delimiter (`.`) using `Array.prototype.split('.')`and use `Array.prototype.reduce()` to add or objects against the keys.
-- If the current accumulator already contains value against a particular key, return its value as the next accumulator.
-- Otherwise, add the appropriate key-value pair to the accumulator object and return value as the accumulator.
+- Use `String.prototype.split('.')` to split each key with a dot delimiter and `Array.prototype.reduce()` to add objects against the keys.
+- If the current accumulator already contains a value against a particular key, return its value as the next accumulator.
+- Otherwise, add the appropriate key-value pair to the accumulator object and return the value as the accumulator.
+
 ```js
-const unflattenObject = obj =>{
-    return Object.keys(obj).reduce((res , k)=>{
-      k.split('.').reduce(function(acc, e, i , keys) {
-        return acc[e] || (acc[e] = isNaN(Number(keys[i + 1])) ? (keys.length - 1 === i ? obj[k] : {}) : []);
-      }, res)
-      return res;
-    },{});
-}
+const unflattenObject = obj =>
+  Object.keys(obj).reduce((res, k) => {
+    k.split('.').reduce(
+      (acc, e, i, keys) =>
+        acc[e] ||
+        (acc[e] = isNaN(Number(keys[i + 1]))
+          ? keys.length - 1 === i
+            ? obj[k]
+            : {}
+          : []),
+      res
+    );
+    return res;
+  }, {});
 ```
 
 ```js