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Is it safe to remove selected keys from map within a range loop?
How can one remove selected keys from a map?
Is it safe to combine delete() with range, as in the code below?
4 Answers
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u'\ufeff' in Python string
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The Unicode character U+FEFF is the byte order mark, or BOM, and is used to tell the difference between big- and little-endian UTF-16 encoding. If you decode the web page using the right codec, Python will remove it for you. Examples:
#!python2
#coding: utf8
u = u'ABC'
e8...
How to check if APK is signed or “debug build”?
As far as I know, in android "release build" is signed APK. How to check it from code or does Eclipse has some kinda of secret defines?
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What is the difference between ManualResetEvent and AutoResetEvent in .NET?
I have read the documentation on this and I think I understand. An AutoResetEvent resets when the code passes through event.WaitOne() , but a ManualResetEvent does not.
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Can a java file have more than one class?
...classes, etc) together with the main public class. Note that it is always OK not to do this--the only effect is on the readability (or not) of your code.
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How to append a char to a std::string?
...answered Sep 24 '09 at 14:29
AraKAraK
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How to sum all column values in multi-dimensional array?
How can I add all the columnar values by associative key? Note that key sets are dynamic.
20 Answers
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Django datetime issues (default=datetime.now())
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it looks like datetime.now() is being evaluated when the model is defined, and not each time you add a record.
Django has a feature to accomplish what you are trying to do already:
date = models.DateTimeField(auto_now_add=True, b...
How to set the style -webkit-transform dynamically using JavaScript?
I want to change the -webkit-transform: rotate() property using JavaScript dynamically, but the commonly used setAttribute is not working:
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iOS detect if user is on an iPad
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There are quite a few ways to check if a device is an iPad. This is my favorite way to check whether the device is in fact an iPad:
if ( UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad )
{
return YES; /* Device is iPad */
}
The way I use it
#defi...