What is curl and how to use it with nodejs? : <p>I Can not understand the purpose and use case of curl. 
what it is meant to be doing?</p>

<p>There is this command that i saw in a tutorial and i don't know how it is working </p>

<pre><code>curl -d 'hello' http://localhost:8080
</code></pre>

<p>we are passing the hello string to the server as a request and can't we do that in browser, if we can , can you please explain how to write the same thing in the browser</p>
