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Python __call__ special method practical example
...e to use the functions in a similar fashion to the hashlib.foo functions:
from filehash import sha1
print sha1('somefile.txt')
Of course I could have implemented it a different way, but in this case it seemed like a simple approach.
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What is a covariant return type?
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From the release of JDK 1.5, covariant types were introduced in Java. and I'll explain it to you with a simple case, : When we override a function the function is allowed to make changes to it's behaviour that's what you get ...
Using CSS to affect div style inside iframe
...licy applies, so you can only do this to an iframe element which is coming from your own server.
I use the Prototype framework to make it easier:
frame1.$('mydiv').style.border = '1px solid #000000'
or
frame1.$('mydiv').addClassName('withborder')
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Difference between add(), replace(), and addToBackStack()
...t finds a fragment by its tag that you defined before either when inflated from XML or as supplied when added in a transaction.
References: FragmentTransaction
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General guidelines to avoid memory leaks in C++ [closed]
...the most basic pattern to know is RAII.
Learn to use smart pointers, both from boost, TR1 or even the lowly (but often efficient enough) auto_ptr (but you must know its limitations).
RAII is the basis of both exception safety and resource disposal in C++, and no other pattern (sandwich, etc.) will...
Catch all JavaScript errors and send them to server
...anyone had experience in handling JavaScript errors globally and send them from the client browser to a server.
8 Answers
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Changing user agent on urllib2.urlopen
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Setting the User-Agent from everyone's favorite Dive Into Python.
The short story: You can use Request.add_header to do this.
You can also pass the headers as a dictionary when creating the Request itself, as the docs note:
headers should be ...
Using grep to search for a string that has a dot in it
... you'll need to use \\. for bash too, or use "\." to escape it from the shell.
– Tomofumi
Aug 9 '17 at 7:39
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No Swipe Back when hiding Navigation Bar in UINavigationController
I love the swipe pack thats inherited from embedding your views in a UINavigationController . Unfortunately i cannot seem to find a way to hide the NavigationBar but still have the touch pan swipe back gesture . I can write custom gestures but I prefer not to and to rely on the UINavigationCo...
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize
... has been removed. The reason is that the permanent generation was removed from the hotspot heap and was moved to native memory.
So in order to remove this message
edit MAVEN_OPTS Environment User Variable:
Java 7
MAVEN_OPTS -Xmx512m -XX:MaxPermSize=128m
Java 8
MAVEN_OPTS -Xmx512m
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