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Is explicitly closing files important?
In Python, if you either open a file without calling close() , or close the file but not using try - finally or the " with " statement, is this a problem? Or does it suffice as a coding practice to rely on the Python garbage-collection to close all files? For example, if one does this:
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How to revert a Git Submodule pointer to the commit stored in the containing repository?
... merge.
Run this and all should be well:
git submodule update --init
You can add the --recursive flag as well to recurse through all submodules.
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Difference between “module.exports” and “exports” in the CommonJs Module System
...ens to be set to module.exports.
At the end of your file, node.js will basically 'return' module.exports to the require function. A simplified way to view a JS file in Node could be this:
var module = { exports: {} };
var exports = module.exports;
// your code
return module.exports;
If you set ...
What is the meaning of addToBackStack with null parameter?
...ing of addToBackStack(null) followed by a commit()?
Quoting docs:
By calling addToBackStack(), the replace transaction is saved to the
back stack so the user can reverse the transaction and bring back the
previous fragment by pressing the Back button.
If you add multiple changes to th...
How to sort an IEnumerable
How can I sort an IEnumerable<string> alphabetically. Is this possible?
4 Answers
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C/C++ macro string concatenation
Is it possible to concatenate have STR3 == "s1"?
You can do this by passing args to another Macro function. But is there a direct way?
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Generic Repository With EF 4.1 what is the point
...itories are currently very popular and overused. Everybody use them just because there are dozens of articles about creating repository for entity framework but nobody actually describes challenges related to this decision.
Main reasons for using repository are usually:
Hide EF from upper layer
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Why is 'false' used after this simple addEventListener function?
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According to MDN Web Docs, the third parameter is:
useCapture
If true, useCapture indicates that the user wishes to
initiate capture. After initiating
capture, all events of the specified
type will be dispatched to the
registered listener before being
dispatched to a...
How can I save an image to the camera roll?
... to Xcode (using 4.3) and am not sure how to save an image to the device's camera roll. All that I have done so far is set up an IBAction for the button to save the image. What library method or function can I use to save an image to the user's camera roll?
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How can I see all the issues I'm watching on Github?
Github has a great feature where you can "watch" an issue. This is handy for getting notifications about progress on that issue.
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