How to install only "devDependencies" using npm : <p>I am trying to install ONLY the "devDependencies" listed in my package.json file. But none of the following commands work as I expect. All of the following commands install the production dependencies also which I do not want.</p>

<pre><code>npm install --dev
npm install --only=dev
npm install --only-dev
</code></pre>

<p>I cannot think of any more ways of telling the npm to install the devDependencies alone. :( </p>
