As with most things in life, when you get more experienced, you improve. The bulk of my work in the past few years has been on mobile and back-end. I’m doing a lot more work on the browser lately, learning new things every day. Since my last Kotlin JS / Promises post, I discovered an interesting trick I’d like to share.
The async and await keywords (see MDN Web Docs) act as syntactic sugar on top of promises, making asynchronous code a lot easier to write and read.
And, as a lot of the standard JS APIs, Promise’s async/await is also available to Kotlin-JS developers.
* Awaits for completion of the promise without blocking.
* This suspending function is cancellable.
*/publicsuspendfun <T> Promise<T>.await(): T // ...
Not only do we get a nice suspend extension function, but it’s cancellable. Let’s see how we can use this in our code.
I’ve recently decided to invest in a small local company with a good college buddy of mine. The company rents out containers for construction & demolition waste pickups and offers a junk removal service.
Now, when my friend bought the company a couple of years back, it was a mom-and-pop shop. The company back office he inherited was a bunch of Google Sheets, involving many manual entries with a copious amount of copy-pasta.
It worked “fine”, but the company’s day-to-day administration quickly got tedious with those kinds of tools, as you can imagine. Since my primary expertise is developing software, my role in the company will be to build a better back-office.