default .demand message has counts, provided one can't?

[ljharb]

How can I do .demand(n, msg) such that msg can contain a count of the number of non-option arguments provided?

[bcoe]

@ljharb I like the idea of being able to have a simple placeholder in your message, such as:

%i, but this feature doesn't yet exist.

[ljharb]

That's exactly what i was thinking - just like usage has $0.

[ljharb]

I went ahead and made a PR - please let me know your thoughts!

[bcoe]

demand has now been split into demandCommand and demandOption, the first for positional arguments, and the latter for options.

https://github.com/yargs/yargs/blob/master/docs/api.md#demandoptionkey-msg