What's the 0 property for?

[luokuning]

Hi there, I noticed that there is a 0 property in the FixedSizeArray type:

fixed-size-array/src/index.d.ts

Line 5 in 79df3bd

0: T;

What does that mean? Why should we add this property there? Thanks in advance.

[mstn]

Hi, here I explained what is going on. While here there is an explanation for the 0 trick.

I have not researched this topic further. Maybe you can find more information on the Web today.

[luokuning]

Very informative, thanks for sharing! 😄