Update deepGet.md

snippets/deepGet.md

@@ -1,16 +1,17 @@
 ### deepGet
 
-Returns the target value in a nested JSON object, based on the keys array.
+Returns the target value in a nested JSON object, based on the `keys` array.
 
-Contrust the keys you want in the nested JSON object as an `Array`.
-Use `Array.prototype.reduce()` to get value from nested JSON object one by one. if the key exists in object, return target value, otherwise, return null.
+Compare the keys you want in the nested JSON object as an `Array`.
+Use `Array.prototype.reduce()` to get value from nested JSON object one by one. 
+If the key exists in object, return target value, otherwise, return `null`.
 
 ```js
 const deepGet = (obj, keys) => keys.reduce((xs, x) => (xs && xs[x]) ? xs[x] : null, obj)
 ```
 
 ```js
-let idx = 2; // or variable from other places
+let index = 2; 
 const data = {
   foo: {
     foz: [1, 2, 3],
@@ -19,6 +20,6 @@ const data = {
     }
   }
 };
-deepGet(data, ['foo', 'foz', idx]); // get 3
+deepGet(data, ['foo', 'foz', index]); // get 3
 deepGet(data, ['foo', 'bar', 'baz', 8, 'foz']); // null
 ```