anchor.diff:  ----
   
   Notice that a `:foreign-libs` entry may now specify a directory for `:file`.
  -In this case the ClojureScript compiler will recursive search this directory
  +In this case, the ClojureScript compiler will recursive search this directory
   for `.js` files and automatically create the `:foreign-libs` entries for you
   with the supplied options. The `:provides` namespace for each entry will
  -automatically be created from the directory structure.
  +be automatically computed from the directory structure.
   
   Let's create the main ClojureScript namespace:
   
  
positive.code: == Motivation
  
  When ClojureScript was initially released, compilation to JavaScript was still a
  novelty and source transformation beyond minification was rare. More recently,
  source to source compilation of JavaScript has become increasingly popular,
  whether embedded HTML DSLs as with React JSX, or the new ECMAScript standards that
  address many of JavaScript's old weaknesses. But integrating these new kinds of
  source files required deferring to JavaScript build tools which still lack
  the more advanced features of the Google Closure compiler like precise dead code
  elimination and code splitting.
  
  Fortunately, Google Closure has not only kept abreast of many of the various
  enhancements to the JavaScript language, they've also provided transformation
  from the various popular JavaScript module formats (CommonJS, AMD, ES6) into the
  Google Closure namespace convention. ClojureScript now exposes all of this
  functionality and, with the help of Java 8's Nashorn JavaScript engine, can
  provide even the most cutting edge JavaScript source transforms with
  relative ease.
  
  [[prerequisites]]
  == Prerequisites
  
  Like the QuickStart, this guide assumes you have the latest release of JDK 8,
  Node.js and rlwrap installed. This guide only uses Leiningen for managing
  dependencies and is easily adapted to Boot or Maven.
  
  [[JavaScript Modules]]
  == JavaScript Modules
  
  First let's see how JavaScript modules can be a part of your build. We'll focus
  
negative.code: 
  Since JavaScript modules simply get compiled into Google Closure namespaces, all
  of the generic ClojureScript REPL features just work. For example, if you want
  automatic hot-loading of your ES6 source files just use https://github.com/bhauman/lein-figwheel[Figwheel].
  
  We'll demonstrate manual hot-loading with the standard Node.js REPL.
  
  