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How do I programmatically determine operating system in Java?
...e operating system of the host that my Java program is running programmatically (for example: I would like to be able to load different properties based on whether I am on a Windows or Unix platform). What is the safest way to do this with 100% reliability?
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Applying .gitignore to committed files
...wered Sep 23 '11 at 11:05
Matt BallMatt Ball
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Is there some way to PUSH data from web server to browser?
.../Comet_(programming). Other good Google terms to search for are AJAX-push and reverse-ajax.
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How do I update pip itself from inside my virtual environment?
...ate pip itself? According to pip --version , I currently have pip 1.1 installed in my virtualenv and I want to update to the latest version.
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Proper way to exit iPhone application?
... it to exit due to certain user actions. After cleaning up memory the app allocated, what's the appropriate method to call to terminate the application?
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Swift: declare an empty dictionary
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Surely you couldn't declare a const dictionary and make it empty ? AS you would never be able to add values to it ?
– CW0007007
Jun 4 '14 at 9:18
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Matrix Transpose in Python
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@AntonyHatchkins This is not needed with Python 3.0 and above. There, zip already returns an iterator: docs.python.org/3.0/whatsnew/…
– xuiqzy
May 9 at 13:06
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UnmodifiableMap (Java Collections) vs ImmutableMap (Google) [duplicate]
...// Will return "F".
In contrast to that, the ImmutableMap of Guava is really immutable: It is a true copy of a given map, and nobody may modify this ImmutableMap in any way.
Update:
As pointed out in a comment, an immutable map can also be created with the standard API using
Map<String, S...
Accessing the web page's HTTP Headers in JavaScript
... exactly equal to the current.
Use the following JavaScript code to get all the HTTP headers by performing a get request:
var req = new XMLHttpRequest();
req.open('GET', document.location, false);
req.send(null);
var headers = req.getAllResponseHeaders().toLowerCase();
alert(headers);
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Detect whether there is an Internet connection available on Android [duplicate]
...er downtime, low signal, captive portals, content filters and the like can all prevent your app from reaching a server. For instance you can't tell for sure if your app can reach Twitter until you receive a valid response from the Twitter service.
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