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Import package.* vs import package.SpecificType [duplicate]
...tually a very bad problem.
Suppose you write
import a.*;
import b.*;
...
Foo f;
and class Foo exists in package a.
Now you check in your perfectly compiling code, and six months later, someone adds class Foo to package b. (Perhaps it's a third party lib that added classes in the latest version)...
Check if object is a jQuery object
...nstructor functions are to be called with the new prefix.
When you call $(foo), internally jQuery translates this to new jQuery(foo)1. JavaScript proceeds to initialize this inside the constructor function to point to a new instance of jQuery, setting it's properties to those found on jQuery.protot...
Elegant ways to support equivalence (“equality”) in Python classes
...
You need to be careful with inheritance:
>>> class Foo:
def __eq__(self, other):
if isinstance(other, self.__class__):
return self.__dict__ == other.__dict__
else:
return False
>>> class Bar(Foo):pass
>>> b = Bar...
super() raises “TypeError: must be type, not classobj” for new-style class
...he old-style classes which doesn't inherit from 'object'
class A:
def foo(self):
return "Hi there"
class B(A):
def foo(self, name):
return A.foo(self) + name
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impro...
Comment Inheritance for C# (actually any language)
...
You can always use the <inheritdoc /> tag:
public class Foo : IFoo
{
/// <inheritdoc />
public void Foo() { ... }
/// <inheritdoc />
public void Bar() { ... }
/// <inheritdoc />
public void Snafu() { ... }
}
Using the cref attribute, you ...
What is a loop invariant?
I'm reading "Introduction to Algorithm" by CLRS. In chapter 2, the authors mention "loop invariants". What is a loop invariant?
...
How to create json by JavaScript for loop?
I have array of select tag.
5 Answers
5
...
How do you get the Git repository's name in some Git repository?
...the sed command to also work when the origin url does not end in .git? so 'foo.git' becomes 'foo', but 'foo' is also matched? I guess we need non-greedy matching?
– Arnout Engelen
Nov 13 '15 at 16:38
...
ASP.NET MVC Ajax Error handling
...e different than 200, the error callback is executed:
$.ajax({
url: '/foo',
success: function(result) {
alert('yeap');
},
error: function(XMLHttpRequest, textStatus, errorThrown) {
alert('oops, something bad happened');
}
});
and to register a global error hand...