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Timeout function if it takes too long to finish [duplicate]
...the documentation for signal.
The basic idea is to use signal handlers to set an alarm for some time interval and raise an exception once that timer expires.
Note that this will only work on UNIX.
Here's an implementation that creates a decorator (save the following code as timeout.py).
from fun...
SQL exclude a column using SELECT * [except columnA] FROM tableA?
...atenate the
column names. This type of SELECT does not not return a result set. This is perhaps undocumented behaviour but works in every version of SQL Server. As an alternative you could use SET @variable = (SELECT ... FOR XML PATH('')) to concatenate strings.
Use the ISNULL function to prepend a ...
Should the hash code of null always be zero, in .NET
Given that collections like System.Collections.Generic.HashSet<> accept null as a set member, one can ask what the hash code of null should be. It looks like the framework uses 0 :
...
Is it possible to do start iterating from an element other than the first using foreach?
... editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
Serving static files with Sinatra
...
Without any additional configuration, Sinatra will serve assets in public. For the empty route, you'll want to render the index document.
require 'rubygems'
require 'sinatra'
get '/' do
File.read(File.join('public', 'index.html'))
end
Routes should return a String which become ...
How to recognize swipe in all 4 directions
...
From the storyboard:
Add four swipe gesture recognizers to your view.
Set each one with the target direction from the attribute inspector. You can
select right, left, up or down
One by one, select the swipe gesture recognizer, control + drag to your view controller. Insert the name (let us say...
How to override to_json in Rails?
... editor after snippets, if snippets enabled
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StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
...
How to turn on WCF tracing?
... editor after snippets, if snippets enabled
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createEditor();
});
}
else {
createEditor();
...
Cancellation token in Task constructor: why?
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Getting new Twitter API consumer and secret keys
... your apps will be granted for read-only access. To change this, go to the Settings tab and change the access level required in the "Application Type" section.
Existing apps
To get the consumer and access tokens for an existing application, go to My applications (which is available from the menu i...