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Why does Python use 'magic methods'?
...a part of Python, and it’s too
late to make such fundamental changes
now. The functions have to remain to
avoid massive code breakage.
The other "magical methods" (actually called special method in the Python folklore) make lots of sense, and similar functionality exists in other languages...
What's the point of the X-Requested-With header?
...n XHR request.
If the server is checking that this header is present, it knows that the request didn't initiate from an attacker's domain attempting to make a request on behalf of the user with JavaScript. This also checks that the request wasn't POSTed from a regular HTML form, of which it is hard...
JavaScript sleep/wait before continuing [duplicate]
...ew Date().getTime() - start) > milliseconds){
break;
}
}
}
now, if you want to sleep for 1 second, just use:
sleep(1000);
example: http://jsfiddle.net/HrJku/1/
please note that this code will keep your script busy for n milliseconds. This will not only stop execution of Javascript o...
do you have kcachegrind like profiling tools for mac [closed]
...
There is now a 'brew install qcachegrind' where the formula is based on that blog. Although it (atm) does not install the /Applications/QCachegrind.app, just a qcachegrind binary.
– DTest
Jul 6 '...
Query for array elements inside JSON type
...n where condition but how to delete particular object like this ? i dont know index of this object . i want to delete by key value .
– Pranay Soni
Jul 21 '16 at 7:35
1
...
What's the difference between using CGFloat and float?
... to make your app 64-bit clean and try running it as such, since most Macs now have 64-bit CPUs and Snow Leopard is fully 64-bit, including the kernel and user applications. Apple's 64-bit Transition Guide for Cocoa is a useful resource.
...
How do I format XML in Notepad++?
...error when trying to use this plugin, try XML Tools -> Check XML syntax now. I had an issue where the encoding was specified as UTF-16 but was actually UTF-8. Changing the encoding attribute in the XML file fixed the problem.
– Mirza Dobric
Jul 20 '12 at 1...
How to remove convexity defects in a Sudoku square?
...a mask for the sudoku grid:
mask = FillingTransform[largestComponent]
Now, I can use a 2nd order derivative filter to find the vertical and horizontal lines in two separate images:
lY = ImageMultiply[MorphologicalBinarize[GaussianFilter[srcAdjusted, 3, {2, 0}], {0.02, 0.05}], mask];
lX = Image...
Command not found when using sudo
... set the executable permission on foo.sh
$ ls -l foo.sh # Now we see an x after the rw
-rwxr-xr-x 1 rkielty users 0 2012-10-21 14:47 foo.sh
^ ^ ^
foo.sh is now executable as far as Linux is concerned.
Using sudo results in Command not found
When you run a command using sud...
Java String remove all non numeric characters
...de:
String str = "a12.334tyz.78x";
str = str.replaceAll("[^\\d.]", "");
Now str will contain "12.334.78".
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