Travis build: 734 [ci skip]

README.md

@@ -250,6 +250,7 @@
 * [`isFunction`](#isfunction)
 * [`isNull`](#isnull)
 * [`isNumber`](#isnumber)
+* [`isPromiseLike`](#ispromiselike)
 * [`isString`](#isstring)
 * [`isSymbol`](#issymbol)
 * [`isValidJSON`](#isvalidjson)
@@ -4196,6 +4197,37 @@ isNumber(1); // true
 <br>[⬆ Back to top](#table-of-contents)
 
 
+### isPromiseLike
+
+Returns `true` if an object looks like a [`Promise`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Promise), `false` otherwise.
+
+Check if the object is not `null`, its `typeof` matches either `object` or `function` and if it has a `.then` property, which is also a `function`.
+
+```js
+const isPromiseLike = obj =>
+  obj !== null &&
+  (typeof obj === 'object' || typeof obj === 'function') &&
+  typeof obj.then === 'function';
+```
+
+<details>
+<summary>Examples</summary>
+
+```js
+isPromiseLike({
+  then: function() {
+    return '';
+  }
+}); // true
+isPromiseLike(null); // false
+isPromiseLike({}); // false
+```
+
+</details>
+
+<br>[⬆ Back to top](#table-of-contents)
+
+
 ### isString
 
 Checks if the given argument is a string.

snippets/isPromiseLike.md

@@ -6,11 +6,17 @@ Check if the object is not `null`, its `typeof` matches either `object` or `func
 
 ```js
 const isPromiseLike = obj =>
-  obj !== null && (typeof obj === 'object' || typeof obj === 'function') && typeof obj.then === 'function';
+  obj !== null &&
+  (typeof obj === 'object' || typeof obj === 'function') &&
+  typeof obj.then === 'function';
 ```
 
 ```js
-isPromiseLike({then:function () {return ''}}); // true
+isPromiseLike({
+  then: function() {
+    return '';
+  }
+}); // true
 isPromiseLike(null); // false
 isPromiseLike({}); // false
 ```