String identity template tag

[Mark Miller]

What is the intuition behind "expand"? What is being expanded, and what is
it expanding into?



On Tue, Dec 11, 2018 at 10:59 PM Isiah Meadows <isiahmeadows at gmail.com>
wrote:

> Those names a little too generic for my liking here. What about
> `String.expand(template, ...params)`?
>
> And also, let's not try to bake a traditional template engine into the
> JS spec - syntactic template strings already work well enough.
>
> -----
>
> Isiah Meadows
> contact at isiahmeadows.com
> www.isiahmeadows.com
>
> On Wed, Dec 12, 2018 at 1:13 AM Michael Luder-Rosefield
> <rosyatrandom at gmail.com> wrote:
> >
> > Why not String.tag or .tagged?
> >
> > While we're at it, is there any good reason not to have something like
> this:
> >
> > ```
> > String.template = (template : String,
> taggerFn=String.identity/tag/tagged : Function) => (keys : Array | Object)
> => taggerFn(template, (keys is Array) ? ...keys : keys)
> > // apologies for pseudo-semi-functional code
> > // having keys be an object allows template to be filled by key name
> rather than just index
> > ```
> > This would make templates closer to the traditional usage, where the
> template comes first and is later passed values to be filled in with.
> Having the taggerFn as an argument allows for things like Isiah's
> escape-then-apply tagging examples.
> >
> >
> > On Wed, 12 Dec 2018 at 12:51 Isiah Meadows <isiahmeadows at gmail.com>
> wrote:
> >>
> >> I'm not married to `identity`, and I agree the name is probably not
> >> ideal. I'm more concerned about functionality, though.
> >>
> >> -----
> >>
> >> Isiah Meadows
> >> contact at isiahmeadows.com
> >> www.isiahmeadows.com
> >>
> >> On Tue, Dec 11, 2018 at 5:41 AM T.J. Crowder
> >> <tj.crowder at farsightsoftware.com> wrote:
> >> >
> >> > On Mon, Dec 10, 2018 at 7:08 PM Isiah Meadows
> >> > <isiahmeadows at gmail.com> wrote:
> >> > >
> >> > > It'd be *way* easier to construct simple template tags if there was
> a
> >> > > built-in identity tag
> >> >
> >> > Wholeheartedly agree, a couple of months ago I considered posting
> something very similar, both for utility reasons and in hopes that it would
> be an optimization target (being a standard operation).
> >> >
> >> > I find the name `identity` unilluminating, though, partially because
> it's not quite the same meaning as the usual "identity" function (`function
> identity(x) { return x; }`), though it's close. `assemble`?
> >> >
> >> > -- T.J. Crowder
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-- 
  Cheers,
  --MarkM
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