Add Who Am I: NPM Edition as a javascript 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/).
 
-_632 TILs and counting..._
+_633 TILs and counting..._
 
 ---
 
@@ -253,6 +253,7 @@ _632 TILs and counting..._
 - [Transforming ES6 and JSX With Babel 6](javascript/transforming-es6-and-jsx-with-babel-6.md)
 - [Truthiness of Integer Arrays](javascript/truthiness-of-integer-arrays.md)
 - [Waiting On Multiple Promises](javascript/waiting-on-multiple-promises.md)
+- [Who Am I: NPM Edition](javascript/who-am-i-npm-edition.md)
 - [Yarn Commands Without The Emojis](javascript/yarn-commands-without-the-emojis.md)
 
 ### Linux

javascript/who-am-i-npm-edition.md

@@ -0,0 +1,9 @@
+# Who Am I: NPM Edition
+
+Want to know who has been configured as the current user via the NPM CLI?
+
+```bash
+$ npm whoami
+```
+
+See `man npm-whoami` for more details.