> Python's take on this is that if you want a bool, you use the bool
> constructor `bool( <expr> )`; we could add a vimscript function (like
> `string`) which takes an expr and returns either `v:true` or `v:false`, as
> in `return bool( 'string' )` or `return bool( 99 )`. The semantics of the
> type specified would have to determine how 'truthy' a value is. I think
> that's already defined for vimscript as mentioned.
We already have the "!!" operator which most likely does the same thing.
Anyone writing Javascript or Typescript is common with using this.
Using bool() would also work, but I don't see a good reason to add
a second way. We don't have much similarity with Python for
expressions.
As mentioned before, some users expect an expression like
"'yes' || 'no'" to result in "true" when used for a bool, like in a
condition of :if or :while. I'm right now implementing that, and it
looks like it will work and feels natural.
Without "||" or "&&" you would still need to use "!!", which makes
sense, since using a string or number for a boolean value looks like a
mistake.
--
MONK: ... and the Lord spake, saying, "First shalt thou take out the Holy Pin,
then shalt thou count to three, no more, no less. Three shalt be the
number thou shalt count, and the number of the counting shalt be three.
Four shalt thou not count, neither count thou two, excepting that thou
then proceed to three. Five is right out. Once the number three, being
the third number, be reached, then lobbest thou thy Holy Hand Grenade of
Antioch towards thou foe, who being naughty in my sight, shall snuff it.
"Monty Python and the Holy Grail" PYTHON (MONTY) PICTURES LTD
/// Bram Moolenaar -- [email protected] -- http://www.Moolenaar.net \\\
/// sponsor Vim, vote for features -- http://www.Vim.org/sponsor/ \\\
\\\ an exciting new programming language -- http://www.Zimbu.org ///
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