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NSLog the method name with Objective-C in iPhone
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In Swift 4:
func test(){
print(#function)
}
test() //print the value "test()"
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At runtime, find all classes in a Java application that extend a base class
...ass) {
List list = aClass.newInstance();
list.add("test");
System.out.println(list.getClass().getName() + ": " + list.size());
}
}
}
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Remove blank lines with grep
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I prefer using egrep, though in my test with a genuine file with blank line your approach worked fine (though without quotation marks in my test). This worked too:
egrep -v "^(\r?\n)?$" filename.txt
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Inheriting class methods from modules / mixins in Ruby
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module ClassMethods
def bar2
'bar2'
end
end
end
class Test
include Foo
end
Test.new.bar1 # => "bar1"
Test.bar2 # => "bar2"
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CSS How to set div height 100% minus nPx
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Here is a working css, tested under Firefox / IE7 / Safari / Chrome / Opera.
* {margin:0px;padding:0px;overflow:hidden}
div {position:absolute}
div#header {top:0px;left:0px;right:0px;height:60px}
div#wrapper {top:60px;left:0px;right:0px;bottom:0px...
Spring @Transactional - isolation, propagation
...art in the same transaction.
We can easily verify the behaviour with a test and see how results differ with propagation levels:
@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration(locations="classpath:/fooService.xml")
public class FooServiceTests {
private @Autowired Transaction...
How to overcome TypeError: unhashable type: 'list'
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@msh855 is there any size limit? I tested the dictionary with a tuple of size 100,000 and it worked fine for me (I'm using python 3.6)
– Sreram
Jan 9 at 17:19
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Iterate two Lists or Arrays with one ForEach statement in C#
...ir<T, U>(default(T), secondEnumerator.Current);
}
}
static void Test()
{
IList<string> names = new string[] { "one", "two", "three" };
IList<int> ids = new int[] { 1, 2, 3, 4 };
foreach (KeyValuePair<string, int> keyValuePair in ParallelEnumerate(names, ids)...
Does .asSet(…) exist in any API?
... this, the most common reason to construct a Set (or List) by hand is in a test class where you are passing in test values.
– Scott McIntyre
May 20 '16 at 14:17
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What is the difference between is_a and instanceof?
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Here is performance results of is_a() and instanceof:
Test name Repeats Result Performance
instanceof 10000 0.028343 sec +0.00%
is_a() 10000 0.043927 sec -54.98%
Test source is here.
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