Angular

I had this problem looping over an array possibly larger than 10 items. But I only had to show 10. This snippet solves this problem.

There are use cases on when not to use ReactiveForms. In this case, I have some ion-toggles with versions of a book. I just want to use the value of the toggle in my function and whether is set to false or true.

I was stuck quite long with errors while implementing a ReCaptcha with Angular. I finally was able to fix this annoying console error.

I came to the point that I did not know when to use the constructor or ngOnInit. I had this Observable not giving me data until I reached the NgOnInit function. 

How to not subscribe to form changes when you set the default value via the ReactiveForms API