I was sitting at my computer typing status updates for my team when my wife walked into my office. So I looked at her, smiling, and kept typing to finish the sentence as she was reading what I was typing.
When I finished she looked at me and says: “you’re typing and not even looking.”
It was then I realised for the first time in a long time I have a rather useful skill: I can touch type.
In fact, I can touch type on both a conventional keyboard and, depending on the device/operating system, on a phone.
I may be wrong, but based on much observation of others, I believe that may now be a relatively rare and valuable skill.
But I can tell you one thing for sure: it’s a skill that’s taken many, many, many hours and years of practice to master.
Because every now and then a good table flip is needed.
Most examples I found were around making HTTP calls to a server and went no further.
The problem I was solving was to wait for a function that received the results of an HTTP call to finish before then executing other code. That is:
main() — calls –> load() — calls –> httpRequester()
What I need is for load() to return an Observable to main() so I can schedule other code to run only once httpRequester(), and hence load(), where both finished.
After half an hour of looking at examples I figured it out, and for everyone’s benefit, I have created a simple and hopefully easy to understand example on StackBilitz.
NOTE: You can pop the editor open in a new window by selecting “Edit On StackBlitz” in the bottom-left of the inserted window.
If you’re using Internet Explorer or there’s just a black window below, here’s the link to the code (and I suggest using a “modern” browser – Chrome and Edge both work): https://stackblitz.com/edit/typescript-vtrstc.