Add isPlainObject

snippets/isPlainObject.md

@@ -0,0 +1,14 @@
+### isPlainObject
+
+Checks if the provided value is an bbject created by the Object constructor.
+
+Check if the provided value is truthy, use `typeof` to check if it is an object and `Object.constructor` to make sure the constructor is equal to `Object`.
+
+```js
+const isPlainObject = val => !!val && typeof val === 'object' && val.constructor === Object;
+```
+
+```js
+isPlainObject({ 'a': 1 }); // true
+isPlainObject(new Map()); // false
+```

tag_database

@@ -98,6 +98,7 @@ isNil:type
 isNull:type
 isNumber:type,math
 isObject:type,object
+isPlainObject:type,object
 isPrime:math
 isPrimitive:type,function,array,string
 isPromiseLike:type,function,promise