title: React.js and arrow functions vs normal functions
body: <p>I was working on a react.js app and I initially used the arrow function which worked, but then just out of curiosity I decided to try the normal function and the normal function didn't work. I think that they both should output the same thing, what is going wrong?</p>
  
  <pre><code>handleChange = event =&gt; this.setState({init: event.target.value})
  
  handleChange(event){
    this.setState({init: event.target.value})
  }
  </code></pre>