Add Require Additional JS Libraries In Postman as a mac til

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_566 TILs and counting..._
+_567 TILs and counting..._
 
 ---
 
@@ -242,6 +242,7 @@ _566 TILs and counting..._
 - [Display A Message With Alfred](mac/display-a-message-with-alfred.md)
 - [Insert A Non-Breaking Space Character](mac/insert-a-non-breaking-space-character.md)
 - [List All The Say Voices](mac/list-all-the-say-voices.md)
+- [Require Additional JS Libraries In Postman](mac/require-additional-js-libraries-in-postman.md)
 - [Resizing Both Corners Of A Window](mac/resizing-both-corners-of-a-window.md)
 
 ### MySQL

mac/require-additional-js-libraries-in-postman.md

@@ -0,0 +1,20 @@
+# Require Additional JS Libraries In Postman
+
+When writing pre-request scripts and test scripts as part of a Postman
+request, you aren't limited to vanilla JavaScript. There are a handful of
+libraries that can be required where needed.
+
+This short list of available libraries includes `cherrio`, `lodash`, and
+`moment`.
+
+To pull one of these into a particular script, use the standard `require`
+feature:
+
+```javascript
+var moment = require('moment');
+
+var now = moment();
+```
+
+For a full list of what is available, check out [Postman's Sandbox API
+Reference](https://www.getpostman.com/docs/postman/scripts/postman_sandbox_api_reference).