Re: object method call vs module call?

[John Gabriele <jgabriele@...>]

Thanks, all!

On Fri, Jun 16, 2017, at 03:40 PM, Ryan wrote:

Since s is a string, its metatable is the string metatable, so it inherits all methods from string.  So s.find is the same method as string.find:

> s='hello there hi'

> s.find

function: 0x4225d0

> string.find

function: 0x4225d0

So you can execute either s.find or string.find and they give the same result.  This is most useful when using the object syntax you described, since s:find('there') can be used instead of s.find(s,'there') or string.find(s,'there').

On Fri, Jun 16, 2017 at 3:36 PM, John Gabriele <jgabriele@fastmail.fm> wrote:

Hi lua-l,

I understand that:

    > s = 'hello there hi'

    > -- this

    > s:find('there')

    7       11

    > -- is the same as

    > s.find(s, 'there')

    7       11

but what exactly is going on with:

    > -- this

    > s.find(s, 'there')

    7       11

    > -- vs

    > string.find(s, 'there')

    7       11

?

Thanks,

-- John