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how to get the one entry from hashmap without iterating
Is there a elegant way of obtaining only one Entry<K,V> from HashMap, without iterating, if key is not known.
14 An...
The modulo operation on negative numbers in Python
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Unlike C or C++, Python's modulo operator (%) always return a number having the same sign as the denominator (divisor). Your expression yields 3 because
(-5) / 4 = -1.25 --> floor(-1.25) = -2
(-5) % 4 = (-2 × 4 + 3) % 4 = 3...
How to view/delete local storage in Firefox?
...nsion) or Firefox's developer console.
Firebug Method
Open Firebug (click on the tiny bug icon in the lower right)
Go to the DOM tab
Scroll down to and expand localStorage
Right-click the item you wish to delete and press Delete Property
Developer Console Method
You can enter these commands in...
Extract a number from a string (JavaScript)
I have a string in JavaScript like #box2 and I just want the 2 from it.
21 Answers
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Wrapping a C library in Python: C, Cython or ctypes?
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ctypes is your best bet for getting it done quickly, and it's a pleasure to work with as you're still writing Python!
I recently wrapped an FTDI driver for communicating with a USB chip using ctypes and it was great. I had it all done and working in less than one work da...
SignalR: Why choose Hub vs. Persistent Connection?
...is dispatching different types of messages. For example you have different kinds of messages and you want to send different kinds of payloads. With persistent connections you have to embed the message type in the payload (see Raw sample) but hubs gives you the ability to do RPC over a connection (le...
Create timestamp variable in bash script
I am trying to create a timestamp variable in a shell script to make the logging a little easier. I want to create the variable at the beginning of the script and have it print out the current time whenever I issue echo $timestamp . It proving to be more difficult then I thought. Here are some thin...
Maximum execution time in phpMyadmin
...error, please go to
xampp\phpMyAdmin\libraries\config.default.php
Look for : $cfg['ExecTimeLimit'] = 600;
You can change '600' to any higher value, like '6000'.
Maximum execution time in seconds is (0 for no limit).
This will fix your error.
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Secure Web Services: REST over HTTPS vs SOAP + WS-Security. Which is better? [closed]
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HTTPS secures the transmission of the message over the network and provides some assurance to the client about the identity of the server. This is what's important to your bank or online stock broker. Their interest in authenticating the client is not in the identity of the computer, b...
In pure functional languages, is there an algorithm to get the inverse function?
In pure functional languages like Haskell, is there an algorithm to get the inverse of a function, (edit) when it is bijective? And is there a specific way to program your function so it is?
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