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What is the best data type to use for money in C#?
...sion - so you don't lose all those pennies over time!
Full details here:
http://msdn.microsoft.com/en-us/library/364x0z75.aspx
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Check if a variable is of function type
...& obj.constructor && obj.call && obj.apply);
};
See: http://jsperf.com/alternative-isfunction-implementations
EDIT: updated tests suggest that typeof might be faster, see http://jsperf.com/alternative-isfunction-implementations/4
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How to check if a json key exists?
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JSONObject class has a method named "has":
http://developer.android.com/reference/org/json/JSONObject.html#has(java.lang.String)
Returns true if this object has a mapping for name. The mapping may be NULL.
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how to permit an array with strong parameters
...
This https://github.com/rails/strong_parameters seems like the relevant section of the docs:
The permitted scalar types are String, Symbol, NilClass, Numeric, TrueClass, FalseClass, Date, Time, DateTime, StringIO, IO,
Action...
How to properly check if std::function is empty in C++11?
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Check here http://www.cplusplus.com/reference/functional/function/operator_bool/
Example
// function::operator bool example
#include <iostream> // std::cout
#include <functional> // std::function, std::plus
int main (...
How to trigger a build only if changes happen on particular set of files
...emely useful since one of my Git trees has multiple independent projects.
https://github.com/jenkinsci/git-plugin/pull/49
Update: The Git plugin (1.16) now has the 'included' region feature.
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How to redirect Valgrind's output to a file?
...&1
Alternatively, you can tell Valgrind to write somewhere else; see http://valgrind.org/docs/manual/manual-core.html#manual-core.comment (but I've never tried this).
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How to intercept all AJAX requests made by different JS libraries
...ct control method of doing Ajax. Well written code looks first for the XMLHttpRequest object and uses that if available and that has been available since IE 7. But, there could be some code that uses the ActiveXObject method if it's available which would be true through much later versions of IE.
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Check if an array contains any element of another array in JavaScript
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If you're not opposed to using a libray, http://underscorejs.org/ has an intersection method, which can simplify this:
var _ = require('underscore');
var target = [ 'apple', 'orange', 'banana'];
var fruit2 = [ 'apple', 'orange', 'mango'];
var fruit3 = [ 'mango', '...
how to restart only certain processes using supervisorctl?
...can group processes into named groups and manage them collectively.
[unix_http_server]
file=%(here)s/supervisor.sock
[supervisord]
logfile=supervisord.log
pidfile=supervisord.pid
[program:cat1]
command=cat
[program:cat2]
command=cat
[program:cat3]
command=cat
[group:foo]
programs=cat1,cat3
[s...