title: Calling the props from within the class
body: <p>I'm trying to access the this.url property from within the constructor, but I'm getting an error message saying it's undefined.  This seems like normal task that's blocking me from moving forward.</p>
  
  <pre><code>export class Something {
    constructor() {
      this.url = 'domain.com';
    }
    static something(param) {
      const url = `${this.url}/dir/tofile`; // ${this.url} is showing as undefined
      ...
    }
  }
  </code></pre>