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How can I combine hashes in Perl?

... the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible. ...
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Get final URL after curl is redirected

... 201 curl's -w option and the sub variable url_effective is what you are looking for. Something li...
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How do I check that a number is float or integer?

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Facebook access token server-side validation for iPhone app

...ID &client_secret=YOUR_APP_SECRET &grant_type=client_credentials 2) Debug the User Access token (https://developers.facebook.com/docs/howtos/login/debugging-access-tokens/) https://graph.facebook.com/debug_token? input_token=INPUT_TOKEN &access_token=ACCESS_TOKEN Where INPUT_TOKEN ...
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How to get duplicate items from a list using LINQ? [duplicate]

... 240 var duplicates = lst.GroupBy(s => s) .SelectMany(grp => grp.Skip(1)); Note that th...
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How do I check the difference, in seconds, between two dates?

...ates, use total_seconds like this: import datetime as dt a = dt.datetime(2013,12,30,23,59,59) b = dt.datetime(2013,12,31,23,59,59) (b-a).total_seconds() 86400.0 #note that seconds doesn't give you what you want: (b-a).seconds 0 ...
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How to get instance variables in Python?

... answered Sep 20 '08 at 19:34 cnucnu 30.7k2121 gold badges6161 silver badges6363 bronze badges ...
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Why is reading lines from stdin much slower in C++ than Python?

...ed together. For example: int myvalue1; cin >> myvalue1; int myvalue2; scanf("%d",&myvalue2); If more input was read by cin than it actually needed, then the second integer value wouldn't be available for the scanf function, which has its own independent buffer. This would lead to unexp...
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Is there a reason that Swift array assignment is inconsistent (neither a reference nor a deep copy)?

...), so the question no longer applies. The following answer applied to beta 2: It's for performance reasons. Basically, they try to avoid copying arrays as long as they can (and claim "C-like performance"). To quote the language book: For arrays, copying only takes place when you perform an ac...