title: Angular 2: Ignore first trigger of ngOnChanges?
body: <p>Is there any angular 2 way to skip the first trigger of ngOnChanges? Currently I am using this naive approach to ignore it:</p>
  
  <pre><code>isFirst: boolean = true;
  
    ngOnChanges(changes: SimpleChanges) {
      if (this.isFirst) {
        this.isFirst = false;
        return;
      }
      console.log(changes);
    }
  </code></pre>