Add isNull

snippets/isNull.md

@@ -0,0 +1,14 @@
+### isNull
+
+Returns `true` if the specified value is `null`, `false` otherwise.
+
+Use the strict equality operator to check if the value and of `val` are equal to `null`. 
+
+```js
+const isNull = val => val === null;
+```
+
+```js
+isNull(null) // true
+isNull('null') // false
+```

tag_database

@@ -70,6 +70,7 @@ isBoolean:utility
 isDivisible:math
 isEven:math
 isFunction:utility
+isNull:utility
 isNumber:utility
 isPrime:math
 isString:utility