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How to overlay images
I want to overlay one image with another using CSS. An example of this is the first image (the background if you like) will be a thumbnail link of a product, with the link opening a lightbox / popup showing a larger version of the image.
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Is modern C++ becoming more prevalent? [closed]
...ou could learn about if you really wanted to. And there was certainly no one telling me that destructors could be harnessed to help manage memory.
Today, everywhere I look I see RAII and SFINAE and STL and Boost and, well, Modern C++. Even people who are just getting started with the language s...
Ruby class instance variable vs. class variable
... What is the difference between self.things and self.class.things you mentioned in code ?
– cyborg
Jun 26 '18 at 7:53
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Reverse / invert a dictionary mapping
..., []).append(k). I used to be a defaultdict fanboy, but then I got screwed one too many times and concluded that actually explicit is better than implicit.
– alsuren
Nov 10 '10 at 14:55
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Get the full URL in PHP
...hp
$_SERVER['HTTP_X_FORWARDED_HOST'] gets set by balancers and is not mentioned in the list of $_SERVER variables in the PHP manual.
Server controlled variables:
$_SERVER['HTTPS']. The client chooses to use this, but the server returns the actual value of either empty or "on".
$_SERVER['SERVER_P...
Python 3: UnboundLocalError: local variable referenced before assignment [duplicate]
...tion(Var1, Var2):
if Var2 == 0 and Var1 > 0:
print("Result One")
elif Var2 == 1 and Var1 > 0:
print("Result Two")
elif Var1 < 1:
print("Result Three")
return Var1 - 1
function(1, 1)
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Android Emulator: Installation error: INSTALL_FAILED_VERSION_DOWNGRADE
...me packageName as an app that's already installed on the emulator, but the one you're trying to install has a lower versionCode (integer value for your version number).
You might have installed from a separate copy of the code where the version number was higher than the copy you're working with ri...
Intellij idea cannot resolve anything in maven
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This worked for me as well! Does anyone know why this breaks resolution?
– dmi_
Feb 11 '16 at 19:05
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Runnable with a parameter?
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Well it's been almost 9 years since I originally posted this and to be honest, Java has made a couple improvements since then. I'll leave my original answer below, but there's no need for people to do what is in it. 9 years ago, during code review I would have questioned why they did it and maybe...
git add only modified changes and ignore untracked files
...est, this (add -u) doesn't add only modified files, it also "adds" deleted ones.. something I'm currently trying to prevent.
– Zach Lysobey
Jan 16 '13 at 21:44
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