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Primary key or Unique index?
...value appears nowhere, if the value is used for nothing? It's make-work in order to stop Access from asking for a PK. Make a PK if you need to identify the record in a child, otherwise it's a waste.
– Mark Brady
Feb 16 '09 at 20:57
...
Create a File object in memory from a string in Java
...nt to create/write a new File (I don't have write access to filesystem) in order to pass my string data to the function. I should add that the String data don't exist in a file (so I cannot read my data from a file).
...
JavaScript get element by name
...th property, but it's also missing a lot of methods, such as map, forEach, etc. Which explains why we need to use: Array.prototype.forEach.call( NodeList, fn ).
– Florian Margaine
Apr 24 '12 at 21:32
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node.js shell command execution
...arg1 arg2 ... "). Your foo.sh script can reference these using $1, $2 ... etc.
– Tony O'Hagan
Jul 7 '18 at 1:13
If th...
What is the equivalent to a JavaScript setInterval/setTimeout in Android/Java?
...ce/android/os/Handler.html
If you previously used javascript setTimeout() etc to schedule a task to run in the future, this is the Android way of doing it (postDelayed / sendMessageDelayed).
Note that neither Handlers or Timers makes an Android phone wake up from sleep mode. In other words, if you...
How to select all records from one table that do not exist in another table?
...
answers are not in any specific order, so second answer does not mean what you thought it meant.
– user177800
Jul 17 '18 at 16:14
ad...
Scanning Java annotations at runtime [closed]
...7, they should probably go with Reflections. Also, if you are using guava/etc and want to change out the collections, easy as pie. Great comments inside too.
– Andrew Backer
Sep 25 '14 at 10:52
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How does Activity.finish() work in Android?
...events are getting posted.
This thread can execute all these events in the order of insertion.
If you are calling finish() in one of the life cycle callbacks like onCreate()...a "finish" message will get added to this queue but the thread is not free to pick & execute "finish" action
until curr...
Why do loggers recommend using a logger per class?
...ivate static readonly ILog _logger =
LogManager.GetLogger(MethodBase.GetCurrentMethod().DeclaringType);
public void SomeMethod()
{
_logger.DebugFormat("File not found: {0}", _filename);
}
One logger per app (or similar)
Logger.DebugFormat("File not found: {0}", _filename); // Logger...
Vim clear last search highlighting
...ters that hold text, sometimes for yanked data, sometimes for last search, etc. When you do a search, vim puts the pattern in the "/" register, which you reference using @/. You can also assign values to registers using @regname=value where regname is the is the name of the register. So, @/="" is si...