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How to invoke the super constructor in Python?
...on-3.x the process has been simplified:
Python-2.x
class A(object):
def __init__(self):
print "world"
class B(A):
def __init__(self):
print "hello"
super(B, self).__init__()
Python-3.x
class A(object):
def __init__(self):
print("world")
class B(A):
def __init__(self):
print...
C/C++ line number
...
You should use the preprocessor macro __LINE__ and __FILE__. They are predefined macros and part of the C/C++ standard. During preprocessing, they are replaced respectively by a constant string holding an integer representing the current line number and by the cu...
How does Java handle integer underflows and overflows and how would you check for it?
...hods are intrinsics and will be replaced by machine specific code. A quick test showed Math.addExact being 30% faster than a copied method (Java 1.8.0_40).
– TilmannZ
Aug 23 '16 at 13:42
...
.net localhost website consistently making get arterySignalR/poll?transport=longPolling&connectionTo
...n consistently hanging IE11 in Windows 8...I had to disable it in order to test my website in IE11.
– Richard Ev
Nov 17 '14 at 16:15
1
...
__proto__ VS. prototype in JavaScript
What are the differences between __proto__ and prototype ?
30 Answers
30
...
How to set default value for form field in Symfony2?
...
In my testing empty_data doesn't allow me to override the default value from a field submitted empty, e.g. if you want to save to the database as 0 instead of NULL. This bug is still outstanding as far as I can tell: github.com/sym...
How to bind a List to a ComboBox?
...and SelectedValue
For 2) you will need a list of countries first
// not tested, schematic:
List<Country> countries = ...;
...; // fill
comboBox1.DataSource = countries;
comboBox1.DisplayMember="Name";
comboBox1.ValueMember="Cities";
And then in the SelectionChanged,
if (comboBox1.Selec...
What are “first class” objects?
...ally has a fairly rich and sophisticated interface.
>>> dir(2)
['__abs__', '__add__', '__and__', '__class__', '__cmp__', '__coerce__', '__delattr__', '__div__', '__divmod__', '__doc__', '__float__', '__floordiv__', '__getattribute__', '__getnewargs__', '__hash__', '__hex__', '__index__', '...
Difference between left join and right join in SQL Server [duplicate]
... two table with following records:
Table A
id firstname lastname
___________________________
1 Ram Thapa
2 sam Koirala
3 abc xyz
6 sruthy abc
Table B
id2 place
_____________
1 Nepal
2 USA
3 Lumbini
5 Kathmandu
Inne...
How to handle multiple cookies with the same name?
...
I did test the major browsers after reading your answer: Chrome 63 / Opera 55 / IE11 / Edge 16 / Safari 11 / Firefox 58 And they all seems to handle it correctly that the Cookie with longer path are before the one with shorter path...