From 321b662ec751d0008bb519f39bac0d02b5bb451c Mon Sep 17 00:00:00 2001
From: Angelos Chalaris <chalarangelo@gmail.com>
Date: Tue, 23 Jan 2018 19:25:17 +0200
Subject: [PATCH] Add isEmpty

---
 snippets/isEmpty.md | 22 ++++++++++++++++++++++
 tag_database        |  1 +
 2 files changed, 23 insertions(+)
 create mode 100644 snippets/isEmpty.md

diff --git a/snippets/isEmpty.md b/snippets/isEmpty.md
new file mode 100644
index 000000000..f620f3727
--- /dev/null
+++ b/snippets/isEmpty.md
@@ -0,0 +1,22 @@
+### isEmpty
+
+Returns true if the a value is an empty object, collection, map or set, has no enumerable properties or is any type that is not considered a collection.
+
+Check if the provided value is `null` or if its `length` is equal to `0`.
+
+```js
+const isEmpty = val => val == null || !(Object.keys(val) || val).length;
+```
+
+```js
+isEmpty(new Map()); // true
+isEmpty(new Set()); // true
+isEmpty([]); // true
+isEmpty({}); // true
+isEmpty(''); // true
+isEmpty([1, 2]); // false
+isEmpty({ a: 1, b: 2 }); // false
+isEmpty('text'); // false
+isEmpty(123); // true - type is not considered a collection
+isEmpty(true); // true - type is not considered a collection
+```
diff --git a/tag_database b/tag_database
index 85c99fe29..df181e65a 100644
--- a/tag_database
+++ b/tag_database
@@ -93,6 +93,7 @@ isAbsoluteURL:string,utility,browser,url
 isArrayLike:type,array
 isBoolean:type
 isDivisible:math
+isEmpty:type,array,object,string
 isEven:math
 isFunction:type,function
 isLowerCase:string,utility