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Empty set literal?
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Just to extend the accepted answer:
From version 2.7 and 3.1 python has got set literal {} in form of usage {1,2,3}, but {} itself still used for empty dict.
Python 2.7 (first line is invalid in Python <2.7)
>>> {1,2,3}.__class__
<type 'set'>...
How do I send a cross-domain POST request via JavaScript?
... in my opinion.
In short here is how you accomplish the cross domain POST from from.com/1.html to to.com/postHere.php (using PHP as an example). Note: you only need to set Access-Control-Allow-Origin for NON OPTIONS requests - this example always sets all headers for a smaller code snippet.
In po...
How to cancel a Task in await?
...urce source = new CancellationTokenSource();
source.CancelAfter(TimeSpan.FromSeconds(1));
Task<int> task = Task.Run(() => slowFunc(1, 2, source.Token), source.Token);
// (A canceled task will raise an exception when awaited).
await task;
}
private int slowFunc(int a, int b, Cancel...
Django CharField vs TextField
...problem and understood an unpleasant strange difference:
when I get an URL from user as an CharField and then and use it in html a tag by href, it adds that url to my url and that's not what I want. But when I do it by Textfield it passes just the URL that user entered.
look at these:
my website add...
Best place to insert the Google Analytics code [duplicate]
...present on a large percentage of sites across the web, so its often served from the cache, reducing latency to almost nil.
As a matter of personal preference, I like to include it in the <head>, but its really a matter of preference.
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How to activate virtualenv?
...irst few times as well, easy to think that manual is telling "execute this from root of the environment folder".
No need to make activate executable via chmod.
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What is thread contention?
...e a lock is one type of thing that there can be contention over, it is far from the only such thing. There can be contention for lockless resources as well. (For example, if two threads keep atomically incrementing the same integer, they may experience contention due to cache ping-ponging. No locks ...
How should I handle “No internet connection” with Retrofit on Android
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Where is your NetworkConnectivityManager class from? Custom?
– NPike
Apr 3 '14 at 17:58
Y...
Regarding 'main(int argc, char *argv[])' [duplicate]
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Those are for passing arguments to your program, for example from command line, when a program is invoked
$ gcc mysort.c -o mysort
$ mysort 2 8 9 1 4 5
Above, the program mysort is executed with some command line parameters. Inside main( int argc, char * argv[]), this would result ...
Clearing coverage highlighting in Eclipse
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No that view comes from another plug-in. You should use the view "Coverage".
– Kai
Mar 15 '12 at 7:29
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