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Best way to generate random file names in Python
...f uniform length can be generated by using MD5 hashes of the current time:
from hashlib import md5
from time import localtime
def add_prefix(filename):
prefix = md5(str(localtime()).encode('utf-8')).hexdigest()
return f"{prefix}_{filename}"
Calls to the add_prefix('style.css') generates se...
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
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Deleting appcompat_v7 project from my workspace and creating a new android project by unchecking 'Create activity' option did the trick for me. Things specified in other answers didn't work for me. Thanks.
– Srinivasan N
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How to implement the Android ActionBar back button?
...ItemId()) {
case android.R.id.home:
NavUtils.navigateUpFromSameTask(this);
return true;
default:
return super.onOptionsItemSelected(item);
}
}
}
The function NavUtils.navigateUpFromSameTask(this) requires you to define the parent acti...
How to implement an abstract class in ruby?
...ust to chime in late here, I think that there's no reason to stop somebody from instantiating the abstract class, especially because they can add methods to it on the fly.
Duck-typing languages, like Ruby, use the presence/absence or behavior of methods at runtime to determine whether they should ...
ASP.NET MVC Relative Paths
...the ~/ prefix, I wonder why something like this wasn't built in to ASP.NET from the start.
– Chris
Sep 17 '12 at 15:24
4
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Python import csv to list
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How to use your 1st solution but with only some columns from the csv file?
– Sigur
May 6 '17 at 3:13
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Parse RSS with jQuery
.... "THIS PLUGIN IS DISCONTINUED Due to the Google Feeds API being removed from service, which the plugin replied on, it will no longer be available or supported." Source: zazar.net/developers/jquery/zrssfeed
– phanf
Dec 2 '15 at 16:33
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Can I use if (pointer) instead of if (pointer != NULL)?
...verted into boolean false while non-null pointers are converted into true. From the C++11 standard, section on Boolean Conversions:
A prvalue of arithmetic, unscoped enumeration, pointer, or pointer to member type can be converted to a
prvalue of type
bool. A zero value, null pointer value, ...
Inputting a default image in case the src attribute of an html is not valid?
...ebsite for compatibility. This element is widely supported by all browsers from IE6+.
* Unless the URL for the image changed (again), in which case you'll probably see the alt text.
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@synthesize vs @dynamic, what are the differences?
...; field). If the value is being produce by something else (e.g. calculated from other fields) then you have to use @dynamic.
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