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Save and load MemoryStream to/from a file
... Yes that is correct. The difference between them is that CopyTo copies from whatever the current position is instead of always from the begining like WriteTo does.
– AnorZaken
Sep 14 '15 at 19:33
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Prefer composition over inheritance?
...rs. Inheritance is more rigid as most languages do not allow you to derive from more than one type. So the goose is more or less cooked once you derive from TypeA.
My acid test for the above is:
Does TypeB want to expose the complete interface (all public methods no less) of TypeA such that Typ...
Build Eclipse Java Project from Command Line
Is there a way to compile an Eclipse-based Java project from the command line?
8 Answers
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Get protocol + host name from URL
In my Django app, I need to get the host name from the referrer in request.META.get('HTTP_REFERER') along with its protocol so that from URLs like:
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Programmatically access currency exchange rates [closed]
...S dollars or Euros so they don't have to make the mental effort to convert from Australian dollars.
15 Answers
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How to change a module variable from another module?
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You are using from bar import a. a becomes a symbol in the global scope of the importing module (or whatever scope the import statement occurs in).
When you assign a new value to a, you are just changing which value a points too, not the...
What's the difference between a proc and a lambda in Ruby?
...mbda {} gives you a proc that checks the number of arguments passed to it. From ri Kernel#lambda:
Equivalent to Proc.new, except the resulting Proc objects check the number of parameters passed when called.
An example:
p = Proc.new {|a, b| puts a**2+b**2 } # => #<Proc:0x3c7d28@(irb):1&g...
surface plots in matplotlib
...ud into a surface.
Here's a smooth surface example:
import numpy as np
from mpl_toolkits.mplot3d import Axes3D
# Axes3D import has side effects, it enables using projection='3d' in add_subplot
import matplotlib.pyplot as plt
import random
def fun(x, y):
return x**2 + y
fig = plt.figure()...
What does FETCH_HEAD in Git mean?
...TCH_HEAD is a short-lived ref, to keep track of what has just been fetched from the remote repository. git pull first invokes git fetch, in normal cases fetching a branch from the remote; FETCH_HEAD points to the tip of this branch (it stores the SHA1 of the commit, just as branches do). git pull th...
Difference between android-support-v7-appcompat and android-support-v4
...roid 4.0 (API level 14) for most library packages.
Below is difference from Support Library Packages:
v4 Support Library
This library is designed to be used with Android 1.6 (API level 4) Android 2.3 (API level 9) Android 4.0 (API level 14) and higher. It includes the largest set of API...