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Impossible to Install PG gem on my mac with Mavericks
...e Application directory.
Then, specify the location of newly downloaded pg_config:
gem install pg -- --with-pg-config=/Applications/Postgres.app/Contents/Versions/latest/bin/pg_config
If you run in to missing headers problem, try specifying the include directory of the app:
gem install pg -- -...
Thread-safe List property
...ass ThreadSafeList<T> : IList<T>
{
protected List<T> _interalList = new List<T>();
// Other Elements of IList implementation
public IEnumerator<T> GetEnumerator()
{
return Clone().GetEnumerator();
}
System.Collections.IEnumerator Syste...
Docker: adding a file from a parent directory
...ole project directory just to accommodate this.
– ben_frankly
Nov 21 '14 at 18:35
As said by @Günter, there is a work...
Plot two histograms on single chart with matplotlib
...dom
import numpy
from matplotlib import pyplot
x = [random.gauss(3,1) for _ in range(400)]
y = [random.gauss(4,2) for _ in range(400)]
bins = numpy.linspace(-10, 10, 100)
pyplot.hist(x, bins, alpha=0.5, label='x')
pyplot.hist(y, bins, alpha=0.5, label='y')
pyplot.legend(loc='upper right')
pyplot....
How do you split a list into evenly sized chunks?
...
@Nhoj_Gonk Oops it's not an infinite loop, but chunks(L, 0) would raise a ValueError without the max(). Instead, the max() turns anything less than 1 into a 1.
– Bob Stein
Apr 27 at 9:58
...
What is the difference between Θ(n) and O(n)?
...
one is Big "O"
one is Big Theta
http://en.wikipedia.org/wiki/Big_O_notation
Big O means your algorithm will execute in no more steps than in given expression(n^2)
Big Omega means your algorithm will execute in no fewer steps than in the given expression(n^2)
When both condition are tru...
How do I obtain crash-data from my Android application?
...ceptionHandler(new CustomExceptionHandler(
"/sdcard/<desired_local_path>", "http://<desired_url>/upload.php"));
}
CustomExceptionHandler
public class CustomExceptionHandler implements UncaughtExceptionHandler {
private UncaughtExceptionHandler defaultUEH;
private...
Is it possible to clone html element objects in JavaScript / JQuery?
...ipt using the cloneNode() method:
// Create a clone of element with id ddl_1:
let clone = document.querySelector('#ddl_1').cloneNode( true );
// Change the id attribute of the newly created element:
clone.setAttribute( 'id', newId );
// Append the newly created element on element p
document.quer...
Python memory leaks [closed]
...arbage collection module actually can have debug flags set. Look at the set_debug function. Additionally, look at this code by Gnibbler for determining the types of objects that have been created after a call.
share
...
Specifically, what's dangerous about casting the result of malloc?
... to prevent this error is mostly the same reasoning as writing
if (0 == my_var)
instead of
if (my_var == 0)
since the latter could lead to a serious bug if one would confuse = and ==, whereas the first one would lead to a compile error. I personally prefer the latter style since it better refl...