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class
...a single object.
Example:
class SomeClass
class << self
def test
end
end
end
test_obj = SomeClass.new
def test_obj.test_2
end
class << test_obj
def test_3
end
end
puts "Singleton's methods of SomeClass"
puts SomeClass.singleton_methods
puts '-----------------------...
Task not serializable: java.io.NotSerializableException when calling function outside closure only o
...ens in your second case is that you are calling a method, defined in class testing from inside the map function. Spark sees that and since methods cannot be serialized on their own, Spark tries to serialize the whole testing class, so that the code will still work when executed in another JVM. You h...
Does using “new” on a struct allocate it on the heap or stack?
...re slightly different again. To show all these differences, here's a short test program. It doesn't show the difference between static variables and instance variables: the IL would differ between stfld and stsfld, but that's all.
using System;
public class Test
{
static Guid field;
stati...
Do I need dependency injection in NodeJS, or how to deal with …?
...ut anything to achieve what you want. This comes in handy when it comes to testing.
Behold my very lame contrived example.
MyClass.js:
var fs = require('fs');
MyClass.prototype.errorFileExists = function(dir) {
var dirsOrFiles = fs.readdirSync(dir);
for (var d in dirsOrFiles) {
i...
C# “internal” access modifier when doing unit testing
I'm new to unit testing and I'm trying to figure out if I should start using more of internal access modifier. I know that if we use internal and set the assembly variable InternalsVisibleTo , we can test functions that we don't want to declare public from the testing project. This makes me thi...
Python function attributes - uses and abuses [closed]
...t makes no sense but it works ;)
>>> def FakeObject():
... def test():
... print "foo"
... FakeObject.test = test
... return FakeObject
>>> x = FakeObject()
>>> x.test()
foo
share
...
In what areas might the use of F# be more appropriate than C#? [closed]
...the inputs and outputs of functions is a huge time saver, both in terms of testing and reading/understanding the code. It eradicates a whole class of errors that previous systems were prone to.
Exploratory programming Working with script files and the REPL (F# Interactive) allowed me to explore the...
Truncating all tables in a Postgres database
...= 'public'
LOOP
RAISE NOTICE '%',
-- EXECUTE -- dangerous, test before you execute!
format('TRUNCATE TABLE %I.%I CASCADE', _sch, _tbl);
END LOOP;
END
$func$ LANGUAGE plpgsql;
format() requires Postgres 9.1 or later. In older versions concatenate the query string like th...
How can I create a two dimensional array in JavaScript?
...
You should go through the whole thing... e.g. alert(items[0][1]); // 2 etc.
– Dois
May 28 '15 at 8:11
2
...
Stop Chrome Caching My JS Files
.... at least I can't. none of the answers worked for me, still popping up an alert which is deleted in my local js file but it is still in cached js file in chrome.
– Burak Karakuş
Dec 28 '15 at 9:11
...