From f26c94edabcce1eb3b4de959cd03c13bc3a86e29 Mon Sep 17 00:00:00 2001
From: iamsoorena <s.soorena@gmail.com>
Date: Thu, 14 Dec 2017 18:41:38 +0330
Subject: [PATCH] adding function to clean json objects, deeply.

---
 snippets/clean-json-objects.md | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 snippets/clean-json-objects.md

diff --git a/snippets/clean-json-objects.md b/snippets/clean-json-objects.md
new file mode 100644
index 000000000..46ef745dc
--- /dev/null
+++ b/snippets/clean-json-objects.md
@@ -0,0 +1,20 @@
+### Clean Json objects
+
+Clean your json object from unwanted keys, deeply.
+provide set of `keys` to keep and an indicator for `children` if there is any.
+
+```js
+const cleanObj = (obj, keys = [], childIndicator) => {
+  Object.keys(obj).forEach(key => {
+    if (key === childIndicator) {
+      cleanObj(obj[key], keys, childIndicator)
+    } else if (!keys.includes(key)) {
+      delete obj[key]
+    }
+  })
+}
+/*
+  dirtyObj = { a: 1, b: 2, children: {a: 1, b :2}}
+  let cleaned = cleanObj(dirtyObj, [a]) // { a: 1, children : { a: 1}} 
+ */
+```