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C++, Free-Store vs Heap
...R mix "new" and "delete" with "malloc", "realloc", or "free" (or bit level sets for that matter).
During interviews it's good to say that "new and delete use the free store, malloc and free use the heap; new and delete call the constructor and destructor, respectively, however malloc and free do not...
file_put_contents(meta/services.json): failed to open stream: Permission denied
... was a problem on my localhost, running in a Virtual Machine. So I thought setting up a 777 was safe enough, however, folks are right when they say you should look for a different solution. Try 775 first
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Difference between Destroy and Delete
...ault strategy is to do nothing (leave the foreign keys with the parent ids set), except for has_many :through, where the default strategy is delete_all (delete the join records, without running their callbacks).
The delete verbage works differently for ActiveRecord::Association.has_many and Active...
PopupWindow - Dismiss when clicked outside
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Please try to set setBackgroundDrawable on PopupWindow that should close the window if you touch outside of it.
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Find the closest ancestor element that has a specific class
...return el;
}
The while loop waits until el has the desired class, and it sets el to el's parent every iteration so in the end, you have the ancestor with that class or null.
Here's a fiddle, if anyone wants to improve it. It won't work on old browsers (i.e. IE); see this compatibility table for c...
How do I run all Python unit tests in a directory?
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Worked flawlessly! Just set it in your test/ dir and then set the start_id = "./" . IMHO, this answer is now (Python 3.7) the accepted way!
– jjwdesign
Jun 17 '19 at 0:57
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Spring MVC type conversion : PropertyEditor or Converter?
...plest way is still to use custom property editor. (I tried to call 'binder.setConversionService(...)' in my @InitBinder method, but it fails, since the binder object comes with the 'global' conversion service already set. Seems like per-controller conversion classes are discouraged in Spring 3).
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Passing an array to a query using a WHERE clause
...d a safe answer. Whoever complains it's not safe - how about a deal that I set up this particular code with the $galleries as provided in the question and you exploit it using aforementioned "sql injection vulnerability". If you cannot - you pay me USD200. How about that?
– zer...
/bin/sh: pushd: not found
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OP says it's run from make. So it would be setting SHELL = /bin/bash rather than starting script with #!/bin/bash.
– Jan Hudec
Mar 4 '11 at 12:01
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Difference between a Seq and a List in Scala
...e Collections.unmodifiableList() and similarly there are other methods for Sets, Maps etc. docs.oracle.com/javase/6/docs/api/java/util/…
– jbx
Nov 14 '13 at 16:16
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