anchor.diff:  
   [source,clojure]
   ```
  -{:main hello-world.core
  +{:main hello-webpack.core
    :output-to "out/main.js"
    :output-dir "out"
    :infer-externs true
  
positive.code: should see that `React.Component` got logged.
  
  Check `out/inferred_externs.js`. You should see that `Object.Component` was
  inferred.
negative.code:  :deps {org.clojure/clojurescript {:mvn/version "1.10.308"}}}
  ```
  
  Now create `src/cljs/hello_webpack/core.cljs` with the following contents:
  
  [source,clojure]
  ```
  (ns hello-webpack.core
    (:require [react]))
  
  (.log js/console react/Component)
  