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How can I check whether a option already exist in select by JQuery
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-1 You're basically doing the loop yourself instead of letting jQuery do it like all the other answers. Although this would work, it's re-inventing the wheel.
– Peter
Apr 4 '13 at 18:33
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django urls without a trailing slash do not redirect
...ost.". "The APPEND_SLASH setting is only used if CommonMiddleware is installed...". I prefer Michael Gendin's answer for a cleaner solution.
– Wtower
Feb 11 '15 at 9:26
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How do I plot in real-time in a while loop using matplotlib?
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Did not work on Win64/Anaconda matplotlib.__version__ 1.5.0. An initial figure window opened, but did not display anything, it remained in a blocked state until I closed it
– isti_spl
Feb 4 '16 at 8:39
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How to update gradle in android studio?
I installed Android Studio 0.1.9. Today I got and update to version 0.2 and of course I updated. After the installation I restarted Android Studio but now I get this message:
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ArrayBuffer to base64 encoded string
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I like the simplicity of this approach, but all that string concatenation can be costly. It looks like building an array of the characters and join()ing them at the end is significantly faster on Firefox, IE, and Safari (but quite a lot slower on Chrome): jsperf.com/to...
How to replace plain URLs with links?
...or ftp://
replacePattern1 = /(\b(https?|ftp):\/\/[-A-Z0-9+&@#\/%?=~_|!:,.;]*[-A-Z0-9+&@#\/%=~_|])/gim;
replacedText = inputText.replace(replacePattern1, '<a href="$1" target="_blank">$1</a>');
//URLs starting with "www." (without // before it, or it'd re-link the one...
How to check if a python module exists without importing it
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When trying to find a submodule, it will import the parent module (for all of the above methods)!
food/
|- __init__.py
|- eggs.py
## __init__.py
print("module food loaded")
## eggs.py
print("module eggs")
were you then to run
>>> import importlib
>>> spam_spec = importli...
Where does the .gitignore file belong?
...'s commonly used as a placeholder file in folders, since folders aren't usually tracked by git.
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Is it true that one should not use NSLog() on production code?
... line number to make it easier to track down log statements.
#define DEBUG_MODE
#ifdef DEBUG_MODE
#define DebugLog( s, ... ) NSLog( @"<%p %@:(%d)> %@", self, [[NSString stringWithUTF8String:__FILE__] lastPathComponent], __LINE__, [NSString stringWithFormat:(s), ##__VA_ARGS__] )
#else
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Read/write to Windows registry using Java
... (directly)
This is pure, Java code.
It uses reflection to work, by actually accessing the private methods in the java.util.prefs.Preferences class. The internals of this class are complicated, but the class itself is very easy to use.
For example, the following code obtains the exact windows di...