From fc3d6a0f8faf979bd6903a8167c56d25cdf319fc Mon Sep 17 00:00:00 2001
From: mohammad ali seif kashani <seifkashani14@gmail.com>
Date: Fri, 18 Dec 2020 21:46:16 +0330
Subject: [PATCH 1/2] transition function implemented #2850

---
 modules/_transition.js | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)
 create mode 100644 modules/_transition.js

diff --git a/modules/_transition.js b/modules/_transition.js
new file mode 100644
index 000000000..f9c8fa30f
--- /dev/null
+++ b/modules/_transition.js
@@ -0,0 +1,33 @@
+export function getTogglingfunction() {
+    if (arguments.length == 0) {
+        function inner(input) {
+            return !input;
+        }
+        return inner;
+    } else if (arguments.length != 1) {
+        var args = arguments;
+        function inner(input){
+            let all_arguments = Array.from(args);
+            all_arguments_length = all_arguments.length;
+            index = all_arguments.indexOf(input);
+            return all_arguments[(index + 1) % all_arguments_length];
+        }
+        return inner
+    } else if (arguments[0] instanceof Array){
+        args = arguments[0];
+        function inner(input){
+            let all_arguments = args;
+            all_arguments_length = all_arguments.length;
+            index = all_arguments.indexOf(input);
+            return all_arguments[(index + 1) % all_arguments_length];
+        }
+        return inner   
+    } else {
+        obj = arguments[0];
+        function inner(input) {
+            inner_obj = obj;
+            return inner_obj[input];
+        }
+        return inner
+    }
+}
\ No newline at end of file

From c3967228dbedea322688e0f7ec7f4eb22083d69a Mon Sep 17 00:00:00 2001
From: mohammad ali seif kashani <seifkashani14@gmail.com>
Date: Sun, 20 Dec 2020 23:58:20 +0330
Subject: [PATCH 2/2] findKeys implemented

---
 modules/_findkeys.js | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)
 create mode 100644 modules/_findkeys.js

diff --git a/modules/_findkeys.js b/modules/_findkeys.js
new file mode 100644
index 000000000..b4221707f
--- /dev/null
+++ b/modules/_findkeys.js
@@ -0,0 +1,16 @@
+import cb from './_cb.js';
+import keys from './keys.js';
+
+ 
+function findKeys(obj, predicate, context) {
+  predicate = cb(predicate, context);
+  var _keys = keys(obj), key;
+  var arr = [];
+  for (var i = 0, length = _keys.length; i < length; i++) {
+    key = _keys[i];
+    if (predicate(obj[key], key, obj)) {
+        arr.push(key);
+    }
+  }
+  return arr;
+}
\ No newline at end of file