The short answer is that object.__init__() method does nothing except check that no arguments have been passed in. See the source for details. When called on an instance of Service, the super() call will delegate to object.__init__() and nothing will happen. However, when called on an instance of a subclass of Service, things get more … Read more
There’s more than one way to do it, but this is a pretty good one (I really should have that hotkeyed). vpath %.cpp ../src src = Foo.cpp Bar.cpp test_src = Main.cpp FooTest.cpp BarTest.cpp objects = $(patsubst %.cpp,obj/%.o,$(src)) test_objects = $(patsubst %.cpp,obj/%.o,$(test_src)) $(objects): | obj obj: @mkdir -p $@ obj/%.o : %.cpp @echo $< @$(CXX) $(CXXFLAGS) … Read more
are you required to use the & modifier to pass-by-reference? Technically/semantically, the answer is yes, even with objects. This is because there are two ways to pass/assign an object: by reference or by identifier. When a function declaration contains an &, as in: function func(&$obj) {} The argument will be passed by reference, no matter … Read more
A simple self-calling function can do it. function removeMeta(obj) { for(prop in obj) { if (prop === ‘$meta’) delete obj[prop]; else if (typeof obj[prop] === ‘object’) removeMeta(obj[prop]); } } var myObj = { “part_one”: { “name”: “My Name”, “something”: “123”, “$meta”: { “test”: “test123” } }, “part_two”: [ { “name”: “name”, “dob”: “dob”, “$meta”: { … Read more
You can use the new OBJECT library feature introduced in CMake 2.8.8. The idea is explained here. Basically, the OBJECT library is a similar concept to the convenience library known from Autotools to group object files. Check the complete CMake OBJECT library tutorial.
The question states that he wants to find the object with the greatest id, not just the greatest id… var myArray = [{‘id’:’73’,’foo’:’bar’},{‘id’:’45’,’foo’:’bar’}]; var max = myArray.reduce(function(prev, current) { if (+current.id > +prev.id) { return current; } else { return prev; } }); // max == {‘id’:’73’,’foo’:’bar’}
For reference types, == checks whether the references are equal, i.e. whether they point to the same object. For primitive types, == checks whether the values are equal. java.lang.Integer is a reference type. int is a primitive type. Edit: If one operand is of primitive type, and the other of a reference type that unboxes … Read more
json-stringify-function is a similar post to this one. A snippet discovered via that post may be useful to anyone stumbling across this answer. It works by making use of the replacer parameter in JSON.stringify and the reviver parameter in JSON.parse. More specifically, when a value happens to be of type function, .toString() is called on … Read more
Always use generics! Using object’s results in cast operations and boxing/unboxing of value-types. Because of these reasons generics are faster and more elegant (no casting). And – the main reason – you won’t get InvalidCastExceptions using generics. So, generics are faster and errors are visible at compile-time. System.Object means runtime exceptions and casting which in … Read more
Pass a reference to the Bar object, like so: class Foo(object): def __init__(self): self.text = “Hello World” # has to be created first, so Bar.__init__ can reference it self.bar = Bar(self) class Bar(object): def __init__(self, parent): self.parent = parent self.newText = parent.text foo = Foo() Edit: as pointed out by @thomleo, this can cause problems … Read more