What is a function parameter =[] for?

[Chris Angelico]

On Sat, Nov 28, 2015 at 12:24 AM, Laura Creighton <lac at openend.se> wrote:
> I think it's just another instance of Just-In-Time Manufacturing
> https://en.wikipedia.org/wiki/Just-in-time_manufacturing
>
> "As soon as you need a object, we'll have one ready". :)

Just-In-Time Quantum Manufacturing: "As soon as you need an electron,
we'll have the same one ready!"

ChrisA