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Converting String to Int with Swift
...ar Singh Saini
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Finding index of character in Swift String
...using a wrapper to index by integers (see https://stackoverflow.com/a/25152652/669586) is dangerous because it hides the inefficiency of real indexing.
Note that Swift indexing implementation has the problem that indices/ranges created for one string cannot be reliably used for a different string, ...
Phonegap Cordova installation Windows
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answered Aug 3 '13 at 18:46
frigonfrigon
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Argparse: Way to include default values in '--help'?
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462
Use the argparse.ArgumentDefaultsHelpFormatter formatter:
parser = argparse.ArgumentParser(
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Java URL encoding of query string parameters
...even explicitly recommends to use the UTF-8 encoding, as mandated by RFC3986 and W3C.
All other characters are unsafe and are first converted into one or more bytes using some encoding scheme. Then each byte is represented by the 3-character string "%xy", where xy is the two-digit hexadecimal repre...
Disable cache for some images
...ading on the fly generated php chart image, and controlling the page with $_GET parameters. I wanted the image to be read from cache when the URL GET parameter stays the same, and do not cache when the GET parameters change.
To solve this problem, I needed to hash $_GET but since it is array here i...
How is “int* ptr = int()” value initialization not illegal?
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answered Nov 9 '11 at 16:14
Jerry CoffinJerry Coffin
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HTTP authentication logout via PHP
...ers.
This is a problem that comes from the HTTP specification (section 15.6):
Existing HTTP clients and user agents typically retain authentication
information indefinitely. HTTP/1.1. does not provide a method for a
server to direct clients to discard these cached credentials.
On the ...
How can I convert an RGB image into grayscale in Python?
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answered Aug 30 '12 at 16:48
unutbuunutbu
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