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How to determine the screen width in terms of dp or dip at runtime in Android?
...the layout of the android widgets using dip/dp (in java files). At runtime if I code,
int pixel=this.getWindowManager().getDefaultDisplay().getWidth() ;
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Python string.replace regular expression [duplicate]
...ons are cached (docs), so compiling isn't even necessary. But as you show, if one compiles, compile outside the loop.
– alttag
Nov 14 '17 at 22:01
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Is HttpClient safe to use concurrently?
...can find of usages of HttpClient , it is used for one off calls. But what if I have a persistent client situation, where several requests can be made concurrently? Basically, is it safe to call client.PostAsync on 2 threads at once against the same instance of HttpClient .
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How can I copy data from one column to another in the same table?
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This will also work if you want to transfer old value to other column and update the first one: UPDATE table SET columnA = 'new value', columnB = columnA. Like other answer says - don't forget the WHERE clause to update only what's needed.
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Ruby equivalent of virtualenv?
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RVM works closer to how virtualenv works since it lets you sandbox different ruby versions and their gems, etc.
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Safe integer parsing in Ruby
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This might work:
i.to_i if i.match(/^\d+$/)
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innerText vs innerHTML vs label vs text vs textContent vs outerText
.... The intention is pretty much the same [as textContent] with a couple of differences:
Note that while textContent gets the content of all elements, including <script> and <style> elements, the mostly equivalent IE-specific property, innerText, does not.
innerText is also aware of styl...
Android webview & localStorage
... me that local
storage is'nt supported by my browser (ie. the webview ). If you have any suggestion..
6 Answers
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RSpec: how to test if a method was called?
...t.
expect(invitation).to have_received(:deliver).with("foo@example.com")
If you don't use rubocop-rspec or using non-default option. You may, of course, use RSpec 3 default with expect.
dbl = double("Some Collaborator")
expect(dbl).to receive(:foo).with("foo@example.com")
Official Documentatio...
How do I see a C/C++ source file after preprocessing in Visual Studio?
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cl.exe, the command line interface to Microsoft Visual C++, has three different options for outputting the preprocessed file (hence the inconsistency in the previous responses about Visual C++):
/E: preprocess to stdout (similar to GCC's -E option)
/P: preprocess to file
/EP: preprocess to std...