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Base64 encoding and decoding in client-side Javascript
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Some browsers such as Firefox, Chrome, Safari, Opera and IE10+ can handle Base64 natively. Take a look at this Stackoverflow question. It's using btoa() and atob() functions.
For server-side JavaScript (Node), you can use Buffers to decode.
If you are...
What is the strict aliasing rule?
... way, maybe get some warnings, have it compile fine, only to have weird unexpected behavior when you run the code.
(GCC appears somewhat inconsistent in its ability to give aliasing warnings, sometimes giving us a friendly warning and sometimes not.)
To see why this behavior is undefined, we have to...
How do I pronounce “=>” as used in lambda expressions in .Net
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I usually say 'such that' when reading that operator.
In your example, p => p.Age > 16 reads as "P, such that p.Age is greater than 16."
In fact, I asked this very question on the official linq pre-release forums, and Anders Hejlsberg responded by saying
I usually read the =&g...
Check if list contains element that contains a string and get that element
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@JimIliadis "var" and "string" mean exactly the same thing in this case - the compiler is smart enough to know that the result can only be 'string'. var is really just a coding style thing (when not using anonymous types)
– Dave Bish
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Controlling mouse with Python
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Tested on WinXP, Python 2.6 (3.x also tested) after installing pywin32 (pywin32-214.win32-py2.6.exe in my case):
import win32api, win32con
def click(x,y):
win32api.SetCursorPos((x,y))
win32api.mouse_event(win32con.MOUSEEVENTF_LEF...
How to sort a list of strings?
...f the list, without changing the original, use the sorted() function:
for x in sorted(mylist):
print x
However, the examples above are a bit naive, because they don't take locale into account, and perform a case-sensitive sorting. You can take advantage of the optional parameter key to specif...
How to use/install gcc on Mac OS X 10.8 / Xcode 4.4
I have install Mountain Lion (Mac OS X 10.8) and now gcc doesn't seem to be available anymore. I've also installed Xcode 4.4 so there is no more /Developer directory.
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Getting the class name of an instance?
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Have you tried the __name__ attribute of the class? ie type(x).__name__ will give you the name of the class, which I think is what you want.
>>> import itertools
>>> x = itertools.count(0)
>>> type(x).__name__
'count'
If you're still using Python 2, note ...
Simple Digit Recognition OCR in OpenCV-Python
...of that letter.
And this SOF helped me to find it. These 16 features are explained in the paperLetter Recognition Using Holland-Style Adaptive Classifiers.
( Although I didn't understand some of the features at end)
2) Since I knew, without understanding all those features, it is difficult to do t...
What is the purpose of Rank2Types?
...can write a function that takes different types of arguments without this extension, you can't write a function that uses its argument as different types in the same invocation.
For example the following function can't be typed without this extension because g is used with different argument types ...