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“Missing compiler required member” error being thrown multiple times with almost no changes to code
...; ``` I did Nuget Search for Microsoft.CSharp and installed that. Library now builds :) Q. Can I use this .NetStandard library in Linux app, given the Microsofct reference?
– David Jones
Aug 27 '19 at 12:10
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Inner class within Interface
...uestion: it can be done and this is one kind of use I've seen made of it.
Now I won't comment on the usefulness of such a construct and from I've seen: I've seen it, but it's not a very common construct.
200KLOC codebase here where this happens exactly zero time (but then we've got a lot of other ...
Calling Java varargs method with single null argument?
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The issue is that when you use the literal null, Java doesn't know what type it is supposed to be. It could be a null Object, or it could be a null Object array. For a single argument it assumes the latter.
You have two choices. Cast the null explicitly to Object or call the method u...
How to go to each directory and execute a command?
... If by easier you mean broken then yes, there are easier ways of doing. Now don't worry, all these IFS and read (as you say) become a second nature as you get used to them… they are part of the canonical and idiomatic ways of writing scripts.
– gniourf_gniourf
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Best practice to mark deprecated code in Ruby?
... check their code and catch up. In Java you set @Deprecated and everybody knows what this means.
11 Answers
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How to convert an iterator to a stream?
... targetStream = StreamSupport.stream(
Spliterators.spliteratorUnknownSize(sourceIterator, Spliterator.ORDERED),
false);
An alternative which is maybe more readable is to use an Iterable - and creating an Iterable from an Iterator is very easy with lambdas because Iterable is a f...
Java Hashmap: How to get key from value?
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Apache Collections now supports generics commons.apache.org/proper/commons-collections/javadocs/…
– kervin
May 31 '15 at 16:28
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puts vs logger in rails rake tasks
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Rake tasks are run by a user, on a command-line. Anything they need to know right away ("processed 5 rows") should be output on the terminal with puts.
Anything that needs to be kept for posterity ("sent warning email to jsmith@example.com") should be sent to the Rails.logger.
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How to avoid the “divide by zero” error in SQL?
... a much nicer way of doing it:
Select dividend / NULLIF(divisor, 0) ...
Now the only problem is to remember the NullIf bit, if I use the "/" key.
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How to convert ‘false’ to 0 and ‘true’ to 1 in Python
...actly my point, the "problem" is that u'true' == 'true' and that we don't know what the use case is. Maybe they want a different behaviour for the situation where type(x) != unicode.
– wim
Dec 30 '13 at 14:26
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