Optional array argument is always defined

[Gary Sassano]

I've noticed a difference between an optional standard argument and an array argument.

program
    .command("test")
    .argument("[entrypoint]")

In this case entrypoint = undefined if the user doesn't specify any argument.

program
    .command("test")
    .argument("[entrypoint...]")

In this case entrypoint = [] if the user doesn't specify any argument, whereas I expected it to be undefined.

[John Gee]

Yes, the variadic optional argument has behaved like that since it was added.

(It would also have been reasonable to return undefined for no arguments, as you expected.)