A few notes on choosing between Go and D for a quick project
Chris via Digitalmars-d
digitalmars-d at puremagic.com
Fri Mar 13 08:37:11 PDT 2015
On Friday, 13 March 2015 at 15:17:06 UTC, Andrei Alexandrescu
> On 3/13/15 7:51 AM, Chris wrote:
>> On Friday, 13 March 2015 at 14:34:23 UTC, Russel Winder wrote:
>>> On Fri, 2015-03-13 at 14:20 +0000, Chris via Digitalmars-d
>>>> reluctant to learn something new. Crowd 2. we can win over,
>>>> yet we
>>>> have failed to communicate with them, to reach out to them.
>>>> people I know have a look at D's homepage and say "Uh! Hm.
>>>> Ah, I'll
>>>> use Python." No, they are not hardcore programmers, they are
>>>> engineers and scientists. But they are _users_, people who
>>>> need to
>>>> write software to analyze data, to create something. We
>>>> should not
>>>> ignore them, even if they are not (initially) interested in
>>>> and metaprogramming. Neither was I, when I first learned D.
>>> It is not Python or R or Julia the language that people
>>> choose, it is
>>> the superstructure built on top. So for Python, it is Pandas,
>>> Matplotlib, SciPy, NumPy. And the ability to use ready made
>>> C, C++ and
>>> Fortran libraries.
>> Exactly, that's part of it. People don't understand that they
>> can use
>> all the C libraries with D as well. And if they do, "extern
>> (C)" is too
>> "complicated", at least more complicated than "import
>> numbergrind". I'm
>> really at loss here, I don't know how to communicate these
>> things to
>> people. Colleagues and text books that talk about R and Python
>> weigh so
>> much more than "D can actually interface to C without any
>> Also, sometimes I have the impression that people use any
>> excuse not to
>> use D.
> That may as well be basic psychology at work. Curb appeal (or
> lack thereof) is difficult to explain but is easy to
> rationalize with unrelated arguments.
> There is something loosely related to curb appeal that has been
> discussed here before. Consider someone just starts with D and
> wants to figure whether there's a startsWith function in D.
> So they google for something like ``dlang startswith''. Nicely
> enough http://dlang.org/phobos/std_algorithm.html comes up
> first. (Ideally the individual page
> http://dlang.org/library/std/algorithm/starts_with.html would
> come up.)
> Anyhow, assuming the user clicks on the former, startsWith is
> easy to find at the top and then when you click on it...
> uint startsWith(alias pred = "a == b", Range, Needles...)(Range
> doesThisStart, Needles withOneOfThese) if (isInputRange!Range
> && Needles.length > 1 &&
> is(typeof(.startsWith!pred(doesThisStart, withOneOfThese)) :
> bool) && is(typeof(.startsWith!pred(doesThisStart,
> withOneOfThese[1..$])) : uint));
> bool startsWith(alias pred = "a == b", R1, R2)(R1
> doesThisStart, R2 withThis) if (isInputRange!R1 &&
> isInputRange!R2 &&
> is(typeof(binaryFun!pred(doesThisStart.front, withThis.front))
> : bool));
> bool startsWith(alias pred = "a == b", R, E)(R doesThisStart, E
> withThis) if (isInputRange!R &&
> is(typeof(binaryFun!pred(doesThisStart.front, withThis)) :
> This in big bold font, too. The HTML way of saying, "you wanted
> startsWith? I'll give you more startsWith than you can carry."
> Picture the effect this has on someone who just wanted to see
> if a string starts with another.
> We need to make the template constraints distinct for
> formatting in ddoc.
> Sadly http://dlang.org/library/std/algorithm/starts_with.html
> is bad in other ways. It doesn't have any examples! In
> contrast, the unified page does have some decent examples.
> This all is under the "curb appeal" category.
Yep. This is part of the "make people feel good about it"
approach. Plus, we're not selling shit, it's really a good
product. In a way, we do it the other way around: bad marketing
for a good product.
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