title: Bind "this" to TypeScript Lambda
body: <p>Say I have a lambda in TypeScript:</p>
  
  <pre><code> myArray.forEach(o =&gt; o.x = this.x);
  </code></pre>
  
  <p>The value of <code>this</code> becomes <code>window</code> instead of the calling object. What I'd really like to do is:</p>
  
  <pre><code> myArray.forEach(o =&gt; { o.x = this.x; }.bind(this));
  </code></pre>
  
  <p>But I don't see that as an option in TypeScript. How can I override <code>this</code> in a TypeScript lambda body?</p>