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Using python map and other functional tools
...ot to pass bars through the different functions, but to access it directly from maptest:
foos = [1.0,2.0,3.0,4.0,5.0]
bars = [1,2,3]
def maptest(foo):
print foo, bars
map(maptest, foos)
With your original maptest function you could also use a lambda function in map:
map((lambda foo: maptes...
Why do we need extern “C”{ #include } in C++?
...thing like this: #ifdef __cplusplus extern "C" { #endif So when included from a C++ file they are still treated as a C header.
– Calmarius
Mar 13 '17 at 12:58
add a comment
...
Difference between abstract class and interface in Python
...I don't know what "substantial" means. It's "real" -- it has substance -- from a design perspective. But from a language perspective there may be no support. You could adopt conventions to distinguish between an abstract class and an interface class definition in Python.
– S...
Extracting the last n characters from a ruby string
To get the last n characters from a string, I assumed you could use
8 Answers
8
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Setting PayPal return URL and making it auto return?
...return in your PayPal account, otherwise it will ignore the return field.
From the documentation (updated to reflect new layout Jan 2019):
Auto Return is turned off by default.
To turn on Auto Return:
Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypa...
What is HTML5 ARIA?
...p safely without affecting the web app's functionality.
Here's an example from the ARIA spec:
<ul role="menubar">
<!-- Rule 2A: "File" label via aria-labelledby -->
<li role="menuitem" aria-haspopup="true" aria-labelledby="fileLabel"><span id="fileLabel">File</span&...
Remove refs/original/heads/master from git repo after filter-branch --tree-filter?
...e)" refs/original/ | xargs -n 1 git update-ref -d
(That's taken directly from the filter-branch manpage.)
This doesn't apply to you, but to others who may find this: If you do a filter-branch which removes content taking up significant disk space, you might also want to run git reflog expire --ex...
Prevent scroll-bar from adding-up to the Width of page on Chrome
...
Webkit browsers like Safari and Chrome subtract the scroll bar width from the visible page width when calculating width: 100% or 100vw. More at DM Rutherford's Scrolling and Page Width.
Try using overflow-y: overlay instead.
...
How to remove only underline from a:before?
... remove this?
Yes, if you change the display style of the inline element from display:inline (the default) to display:inline-block:
#test p a:before {
color: #B2B2B2;
content: "► ";
display:inline-block;
}
This is because the CSS specs say:
When specified on or propagated to a...
CABasicAnimation resets to initial value after animation completes
..., your instance will be retained by the animation. So, after calling removeFromSuperview if you forget to remove/destroy the animation by yourself, dealloc for instance will not be called. You'll have a memory leak.
– emrahgunduz
Jan 22 '15 at 14:07
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