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Split string based on a regular expression
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By using (,), you are capturing the group, if you simply remove them you will not have this problem.
>>> str1 = "a b c d"
>>> re.split(" +", str1)
['a', 'b', 'c', 'd']
However there is no need for regex, str.split without any delimiter...
The current SynchronizationContext may not be used as a TaskScheduler
...ronizationContext call when there isn't a SynchronizationContext (that is, if the current context is null). If there's no UI thread, I don't need to synchronize with it in the first place.
TaskScheduler syncContextScheduler;
if (SynchronizationContext.Current != null)
{
syncContextScheduler = T...
Longest line in a file
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@Thomas. Expressing it as a pipe is more general than specifying a file as an option. In my case, I'll be using output piped from a database query.
– Andrew Prock
Oct 31 '09 at 23:31
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Set ImageView width and height programmatically?
...ght of the ImageView:
imageView.getLayoutParams().height = 20;
Important. If you're setting the height after the layout has already been 'laid out', make sure you also call:
imageView.requestLayout();
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How to easily map c++ enums to strings
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If you want the enum names themselves as strings, see this post.
Otherwise, a std::map<MyEnum, char const*> will work nicely. (No point in copying your string literals to std::strings in the map)
For extra syntactic su...
Generating random numbers in Objective-C
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You should use the arc4random_uniform() function. It uses a superior algorithm to rand. You don't even need to set a seed.
#include <stdlib.h>
// ...
// ...
int r = arc4random_uniform(74);
The arc4random man page:
NAME
arc4random, arc4random...
How to verify Facebook access token?
...in issue here is that using the me?access_token method is just plain wrong if the data is coming from the client side; since any site can fish for tokens then use them to authenticate into your site by accessing your api.
– srcspider
Jul 2 '15 at 11:09
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What does @hide mean in the Android source code?
...id);
} catch (RemoteException e) {
// Should never happen, but if it does... deny!
Slog.e(TAG, "PackageManager is dead?!?", e);
}
return PackageManager.PERMISSION_DENIED;
}
However, we can call it by reflection:
Class c;
c = Class.forName("android.app.ActivityManager"...
Best way to require all files from a directory in ruby?
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There's a subtle gotcha to not stripping the extension. If some other part of the code calls require 'foo' then ruby will load the same file again, which can lead to spurious errors. I added my own answer which explains that and shows how to strip the extension.
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Calling a parent window function from an iframe
I want to call a parent window JavaScript function from an iframe.
10 Answers
10
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