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How to turn off INFO logging in Spark?
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Just execute this command in the spark directory:
cp conf/log4j.properties.template conf/log4j.properties
Edit log4j.properties:
# Set everything to be logged to the console
log4j.rootCategory=INFO, console
log4j.appender.console=org.apach...
How to parse a string into a nullable int
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@Chris, the compiler doesn't like your inline if statement (These types are not compatible: 'int' : 'null'). I had to amend it to: return Int32.TryParse(s, out i)? (int?)i : null;
– death_au
Jan 25 ...
Is it possible to data-bind visible to the negation (“!”) of a boolean ViewModel property?
...n my ViewModel to toggle which icon to display without creating a separate computed property of the inverse. Is this possible?
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“NODE_ENV” is not recognized as an internal or external command, operable command or batch file
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It sounds like your error comes from an attempt to run something like this (which works in Linux)
NODE_ENV=development node foo.js
the equivalent in Windows would be
SET NODE_ENV=development
node foo.js
running in the same command shell. You me...
Is there any sed like utility for cmd.exe? [closed]
I want to programmatically edit file content using windows command line ( cmd.exe ). In *nix there is sed for this tasks. Is there any useful native equivalent in windows?
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Can I convert long to int?
... want (discarding MSBs and taking LSBs) in unchecked context (which is the compiler default). It'll throw OverflowException in checked context if the value doesn't fit in an int:
int myIntValue = unchecked((int)myLongValue);
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PHP - concatenate or directly insert variables in string
...cations, those won't matter 1.
As a sidenote, so my answer is a bit more complete: the day you'll want to do something like this:
echo "Welcome $names!";
PHP will interpret your code as if you were trying to use the $names variable -- which doesn't exist.
- note that it will only work if you us...
Overriding fields or properties in subclasses
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What underlies this JavaScript idiom: var self = this?
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See this article on alistapart.com. (Ed: The article has been updated since originally linked)
self is being used to maintain a reference to the original this even as the context is changing. It's a technique often used in event handlers (especially in cl...
Android - Setting a Timeout for an AsyncTask?
...similar to posix thread's join, where the purpose is to wait for thread to complete. In your case it serves as a timeout, which is a circumstantial property. That's why you need to call .get() from handler or from another thread to avoid main UI blocking
– Constantine Samoilenk...