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Passing an array by reference
...er than the (invalid) array of references int & array[100];.
EDIT: Some clarification.
void foo(int * x);
void foo(int x[100]);
void foo(int x[]);
These three are different ways of declaring the same function. They're all treated as taking an int * parameter, you can pass any size array to ...
Most efficient way to prepend a value to an array
...ure about more efficient in terms of big-O but certainly using the unshift method is more concise:
var a = [1, 2, 3, 4];
a.unshift(0);
a; // => [0, 1, 2, 3, 4]
[Edit]
This jsPerf benchmark shows that unshift is decently faster in at least a couple of browsers, regardless of possibly different...
How to check if a float value is a whole number
...
To check if a float value is a whole number, use the float.is_integer() method:
>>> (1.0).is_integer()
True
>>> (1.555).is_integer()
False
The method was added to the float type in Python 2.6.
Take into account that in Python 2, 1/3 is 0 (floor division for integer operands!...
How can I have linebreaks in my long LaTeX equations?
...
If your equation does not fit on a single line, then the multline environment probably is what you need:
\begin{multline}
first part of the equation \\
= second part of the equation
\end{multline}
If you also need some alignment respect to the first part, you can use split:
\begin{equa...
Daylight saving time and time zone best practices [closed]
...d the answers to it the definitive guide to dealing with daylight saving time, in particular for dealing with the actual change overs.
...
How do you run a single test/spec file in RSpec?
... answered Sep 27 '08 at 17:20
Cameron BoothCameron Booth
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...
Django TemplateDoesNotExist?
...ython 2.5 and Nginx on Ubuntu 8.10, with Django builded from latest development trunk.
20 Answers
...
SQL MAX of multiple columns?
...
Well, you can use the CASE statement:
SELECT
CASE
WHEN Date1 >= Date2 AND Date1 >= Date3 THEN Date1
WHEN Date2 >= Date1 AND Date2 >= Date3 THEN Date2
WHEN Date3 >= Date1 AND Date3 >= Date2 THEN Date3
EL...
Format a datetime into a string with milliseconds
I want to have a datetime string from the date with milliseconds. This code is typical for me and I'm eager to learn how to shorten it.
...
Set “Homepage” in Asp.Net MVC
In asp.net MVC the "homepage" (ie the route that displays when hitting www.foo.com) is set to Home/Index .
8 Answers
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