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Is there an IDictionary implementation that, on missing key, returns the default value instead of th
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Indeed, that won't be efficient at all.
You could always write an extension method:
public static TValue GetValueOrDefault<TKey,TValue>
(this IDictionary<TKey, TValue> dictionary, TKey key)
{
TValue ret;
// Ignore return value
dictionary.TryGetValue(key, ...
In Python, how do I index a list with another list?
I would like to index a list with another list like this
7 Answers
7
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Warning “Do not Access Superglobal $_POST Array Directly” on Netbeans 7.4 for PHP
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edited Nov 9 '13 at 10:40
ralight
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How do I get the filepath for a class in Python?
... which file the class was defined in? I need something that can work from either the class C, or from an instance off C.
3 ...
What is the purpose of class methods?
...n that operates on MyClass (factory, dependency injection stub, etc), make it a classmethod. Then it'll be available to subclasses.
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What is the difference between g++ and gcc?
...s (cc1 cc1plus ...) to call depending on the file-type, unless overridden with -x language, they have some differences.
The probably most important difference in their defaults is which libraries they link against automatically.
According to GCC's online documentation link options and how g++ is i...
Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./
...aracter class. The hyphen is a special character in character classes, so it needs to be first:
/[-!$%^&*()_+|~=`{}\[\]:";'<>?,.\/]/
You also need to escape the other regular expression metacharacters.
Edit:
The hyphen is special because it can be used to represent a range of characte...
UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 1
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This is to do with the encoding of your terminal not being set to UTF-8. Here is my terminal
$ echo $LANG
en_GB.UTF-8
$ python
Python 2.7.3 (default, Apr 20 2012, 22:39:59)
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "li...
App Inventor 2 上传文件到服务器的方案全总结 - App Inventor 2 中文网 - ...
...T = microtime(TRUE);
echo "\nReceiving: $fileName \n";
$dataToWrite = file_get_contents('php://input');
$fileStatus = file_put_contents($picDir.$fileName, $dataToWrite);
$dur = microtime(TRUE) - $startT;
echo "\nBytes written: $fileStatus \nDuration: $dur";
?>复制代码...
Javascript regex returning true.. then false.. then true.. etc [duplicate]
I have a strange problem with the validation I am writing on a form. It is a 'Check Username' button next to an input. The input default value is the username for example 'betamax'. When I press 'Check Username' it passes the regex and sends the username to the server. The server behaves as expected...