From 434f40192c459d7b0fa76145d4888284ccc6ff33 Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Tue, 10 Nov 2020 23:17:33 +0200
Subject: [PATCH 1/6] Add primitive type: bigint

---
 lib/data.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/data.js b/lib/data.js
index 49c4638a..3d568301 100644
--- a/lib/data.js
+++ b/lib/data.js
@@ -1,6 +1,6 @@
 'use strict';
 
-const SCALAR_TYPES = ['boolean', 'number', 'string', 'undefined'];
+const SCALAR_TYPES = ['boolean', 'number', 'string', 'undefined', 'bigint'];
 
 // Check if value is scalar
 //   value - <any>

From 99c8532569fc9047fd31fd38e0ecc5b2fb52170e Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Wed, 11 Nov 2020 00:07:00 +0200
Subject: [PATCH 2/6] Implement isReference

---
 lib/data.js | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/data.js b/lib/data.js
index 3d568301..7e1393c3 100644
--- a/lib/data.js
+++ b/lib/data.js
@@ -1,12 +1,18 @@
 'use strict';
 
 const SCALAR_TYPES = ['boolean', 'number', 'string', 'undefined', 'bigint'];
+const REF_TYPES = ['object', 'function'];
 
 // Check if value is scalar
 //   value - <any>
 // Returns: <boolean>
 const isScalar = value => SCALAR_TYPES.includes(typeof value);
 
+// Check if value is reference
+//   value - <any>
+// Returns: <boolean>
+const isReference = value => value !== null && REF_TYPES.includes(typeof value);
+
 // Copy dataset (copy objects to new array)
 //   ds - <Object[]>, source dataset to be copied
 // Returns: <Object[]>
@@ -175,6 +181,7 @@ const mergeObjects = (merger, ...objs) => {
 
 module.exports = {
   isScalar,
+  isReference,
   copy,
   clone,
   duplicate,

From 62d8740c7407700519b2ffa9dd0470c9c8829fe5 Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Wed, 11 Nov 2020 00:07:21 +0200
Subject: [PATCH 3/6] Add tests for scalar/reference utils

---
 test/data.js | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/test/data.js b/test/data.js
index 134fb23b..59cb051b 100644
--- a/test/data.js
+++ b/test/data.js
@@ -11,6 +11,10 @@ metatests.case(
   {
     'common.isScalar': [
       [0, true],
+      [1, true],
+      [1.5, true],
+      [1n, true],
+      [-1n, true],
       ['value1', true],
       [50, true],
       [true, true],
@@ -23,6 +27,14 @@ metatests.case(
       [{}, false],
       ['', true],
     ],
+    'common.isReference': [
+      [{}, true],
+      [[], true],
+      [() => {}, true],
+      [1n, false],
+      [null, false],
+      [undefined, false],
+    ],
     'common.copy': [
       [
         [1, 2, 3],

From 718ed1cc7f29c246e422248521cdb09134c2216e Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Wed, 11 Nov 2020 00:11:09 +0200
Subject: [PATCH 4/6] fixup! Add tests for scalar/reference utils

---
 README.md | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/README.md b/README.md
index 2fa3add6..cbeccd53 100644
--- a/README.md
+++ b/README.md
@@ -53,6 +53,7 @@ $ npm install @metarhia/common
 - [id](#idx)
 - [asyncId](#asyncidx-callback)
 - [isScalar](#isscalarvalue)
+- [isReference](#isreferencevalue)
 - [copy](#copyds)
 - [clone](#cloneobj)
 - [duplicate](#duplicateobj)
@@ -576,6 +577,14 @@ _Returns:_ [`<boolean>`][boolean]
 
 Check if value is scalar
 
+### isReference(value)
+
+- `value`: `<any>`
+
+_Returns:_ [`<boolean>`][boolean]
+
+Check if value is reference
+
 ### copy(ds)
 
 - `ds`: [`<Object[]>`][object] source dataset to be copied

From 2efd8ab1fee09fcd6f4ee6e154278af83c95e449 Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Wed, 11 Nov 2020 00:12:41 +0200
Subject: [PATCH 5/6] fixup! Add primitive type: bigint

---
 CHANGELOG.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 34b600ed..1b86791e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ and this project adheres to
 
 ## [Unreleased][unreleased]
 
+- Add primitive type: bigint for isScalar
+
 ## [2.2.0][] - 2020-07-10
 
 ### Added

From d0350fdb876205300f278cdac4a5f4e9472ad996 Mon Sep 17 00:00:00 2001
From: Timur Shemsedinov <timur.shemsedinov@gmail.com>
Date: Wed, 11 Nov 2020 00:13:30 +0200
Subject: [PATCH 6/6] fixup! Implement isReference

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1b86791e..86882d1c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to
 ## [Unreleased][unreleased]
 
 - Add primitive type: bigint for isScalar
+- Implement isReference
 
 ## [2.2.0][] - 2020-07-10