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Traverse a list in reverse order in Python
...lso access the original index, use enumerate() on your list before passing it to reversed():
>>> for i, e in reversed(list(enumerate(a))):
... print(i, e)
...
2 baz
1 bar
0 foo
Since enumerate() returns a generator and generators can't be reversed, you need to convert it to a list f...
Convert any object to a byte[]
I am writing a prototype TCP connection and I am having some trouble homogenizing the data to be sent.
13 Answers
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Java: parse int value from a char
... x);
produces:
x=5
The nice thing about getNumericValue(char) is that it also works with strings like "el٥" and "el५" where ٥ and ५ are the digits 5 in Eastern Arabic and Hindi/Sanskrit respectively.
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Empty set literal?
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No, there's no literal syntax for the empty set. You have to write set().
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How can I add new keys to a dictionary?
Is it possible to add a key to a Python dictionary after it has been created?
16 Answers
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Best way to use PHP to encrypt and decrypt passwords? [duplicate]
I plan to store foreign account information for my users on my website, aka rapidshare username and passwords, etc... I want to keep information secure, but I know that if I hash their information, I can't retrieve it for later use.
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Checking images for similarity with OpenCV
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This is a huge topic, with answers from 3 lines of code to entire research magazines.
I will outline the most common such techniques and their results.
Comparing histograms
One of the simplest & fastest methods. Proposed decades ago as a means ...
how to bypass Access-Control-Allow-Origin?
...n server on a platform which they set prevent these ajax calls (but I need it to fetch the data from my server to display retrieved data from my server's database).
My ajax script is working , it can send the data over to my server's php script to allow it to process.
However it cannot get the proce...
How can you encode a string to Base64 in JavaScript?
...o…
btoa() accepts a “string” where each character represents an 8-bit byte – if you pass a string containing characters that can’t be represented in 8 bits, it will probably break. This isn’t a problem if you’re actually treating the string as a byte array, but if you’re trying to ...
How to get current route in Symfony 2?
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@got a switchwation for you check meta.stackexchange.com/questions/155258/…
– NullPoiиteя
Nov 10 '12 at 6:35
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