Discover and read the best of Twitter Threads about #jdknews

Most recents (1)

Project Amber is making progress on pattern matching in #JavaNext. Here are three recent developments that I'm very excited about and I think you will be as well.

(Caveats: these are ongoing discussions; none of this is final; speculation and strawman syntax ahead)
1. "Array patterns" allow matching and destructuring arrays. The `if`-line does three things:

a) is `objects` a `String` array with length 2?
b) if so, cast it to `String[]` and extract the two elements
c) declare `a` and `b` and assign the two elements to them
"Can I also bind the arrays as a whole?"

Likely. This is called an "as pattern".

"What if the array can have more elements?"

Allowing to express "at least two elements" is being considered - for example with three dots.
Read 11 tweets

Related hashtags

Did Thread Reader help you today?

Support us! We are indie developers!


This site is made by just two indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member ($3.00/month or $30.00/year) and get exclusive features!

Become Premium

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!