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Access lapply index names inside FUN
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I've had the same problem a lot of times...
I've started using another way... Instead of using lapply, I've started using mapply
n = names(mylist)
mapply(function(list.elem, names) { }, list.elem = mylist, names = n)
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Show and hide a View with a slide up/down animation
...r the animation
view.setVisibility(View.VISIBLE);
view.setAlpha(0.0f);
// Start the animation
view.animate()
.translationY(view.getHeight())
.alpha(1.0f)
.setListener(null);
You can then fade the View back out and slide it back to its original position. We also set an AnimatorListener...
Simple example of threading in C++
Can someone post a simple example of starting two (Object Oriented) threads in C++.
7 Answers
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Match whole string
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Use the start and end delimiters: ^abc$
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Specify format for input arguments argparse python
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Then use that as type:
parser.add_argument("-s",
"--startdate",
help="The Start Date - format YYYY-MM-DD",
required=True,
type=valid_date)
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Convert string in base64 to image and save on filesystem in Python
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Starting with
img_data = b'iVBORw0KGgoAAAANSUhEUgAABoIAAAaCCAYAAAABZu+EAAAqOElEQVR42uzBAQEAAACAkP6v7ggK\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA\nAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA...
Compelling examples of custom C++ allocators?
...custom allocator
(which derives from std::allocator), I think it is a good starting
point to write own allocators. Feel free to use this piece of code
in whatever way you want:
#include <memory>
#include <stdio.h>
namespace mmap_allocator_namespace
{
// See StackOverflow repli...
Loading/Downloading image from URL on Swift
...ionHandler: completion).resume()
}
Create a method to download the image (start the task)
func downloadImage(from url: URL) {
print("Download Started")
getData(from: url) { data, response, error in
guard let data = data, error == nil else { return }
print(response?.suggested...
How do I shutdown, restart, or log off Windows via a bat file?
... a workstation. But in this environment, I cannot use the power options in Start Menu. I need an alternative way to shutdown or restart.
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Why does HTML think “chucknorris” is a color?
...[RGB(192, 192, 0)]
Which gives a light yellow gold colour. As the string starts off as 9 characters, we keep the second C this time around hence it ends up in the final colour value.
I originally encountered this when someone pointed out you could do color="crap" and, well, it comes out brown.
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