Sven R. Kunze wrote:
> On 29.03.2016 12:18, Sven R. Kunze wrote:
>> On 29.03.2016 11:39, Peter Otten wrote:
>>> My question to those who know a bit of C#: what is the state-of-the-art
>>> equivalent to
>>>
>>> "\n".join(foo.description() for foo in mylist
>>> if foo.description() != "")
>>>
>>
>> Using LINQ, I suppose:
>> https://en.wikipedia.org/wiki/Language_Integrated_Query
>
> Friend of mine told me something like this:
>
> String.Join("\n", mylist.Where(foo =>
> !String.IsNullOrEmpty(foo.description)).Select(foo => foo.description))
>
> [untested, but from what I know of quite correct]
Reformatting it a bit
String.Join(
"\n",
mylist.Where(
foo => !String.IsNullOrEmpty(foo.description)
).Select(
foo => foo.description))
this looks like a variant of Python's
str.join(
"\n",
map(lambda foo: foo.description,
filter(lambda foo: foo.description, mylist)))
Assuming it's type-safe and can perhaps reshuffle the where and select part
into something optimised there is definitely progress.
But still, Python's generator expressions are cool..
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