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Converting integer to binary in python
...
>>> '{0:08b}'.format(6)
'00000110'
Just to explain the parts of the formatting string:
{} places a variable into a string
0 takes the variable at argument position 0
: adds formatting options for this variable (otherwise it would represent decimal 6)
08 formats the n...
Pandas count(distinct) equivalent
...this is what you want:
table.groupby('YEARMONTH').CLIENTCODE.nunique()
Example:
In [2]: table
Out[2]:
CLIENTCODE YEARMONTH
0 1 201301
1 1 201301
2 2 201301
3 1 201302
4 2 201302
5 2 201302
6 3 ...
How do I measure the execution time of JavaScript code with callbacks?
I have a piece of JavaScript code that I am executing using the node.js interpreter.
11 Answers
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partial string formatting
...rk for more advanced formattings like {bar:1.2f}
– MaxNoe
Jan 27 '16 at 11:14
I understand saying that "the most basic...
Can I call a base class's virtual function if I'm overriding it?
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The C++ syntax is like this:
class Bar : public Foo {
// ...
void printStuff() {
Foo::printStuff(); // calls base class' function
}
};
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Test if a variable is a list or tuple
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Go ahead and use isinstance if you need it. It is somewhat evil, as it excludes custom sequences, iterators, and other things that you might actually need. However, sometimes you need to behave differently if someone, for instance, passes a string. My preference there would be to explicitly che...
Calling a method every x minutes
...gives a compile error. TotalMilliseconds returns a double while the timer expects integers or TimeSpan. I tried to update your answer to one that employs TimeSpan and throws out unnecessary bloat; however, you reverted it.
– André C. Andersen
Feb 5 '14 at 23:0...
Making custom right-click context menus for my web-app
... they override the browser's behavior of drop-down menu, and I'm now sure exactly how they do it. I found a jQuery plugin that does this, but I'm still curious about a few things:
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Can virtual functions have default parameters?
...eference the defaults denoted in the derived class are used. There is an example below the Standard quotation that demonstrates this.
Some compilers may do something different, but this is what the C++03 and C++11 Standards say:
8.3.6.10:
A virtual function call (10.3) uses
the default ...
What's the best way to develop a sideswipe menu like the one in Facebook's new iOS app?
...doesn't have all of the features of ViewDeck but is simpler to modify and extend.
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