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Method call if not null in C#
...cted about this. In the case of an Action or event handler -- which is typically more independent -- this makes some sense. I wouldn't break encapsulation for a regular method, though. This implies creating the method in a separate, static class and I don't think losing encapsulation and degrading r...
Best practice to mark deprecated code in Ruby?
...ramming for a deprecation is overkill. Just add a comment to the rdoc and call the Kernel#warn method. For example:
class Foo
# <b>DEPRECATED:</b> Please use <tt>useful</tt> instead.
def useless
warn "[DEPRECATION] `useless` is deprecated. Please use `useful` inst...
How to export revision history from mercurial or git to cvs?
...
Fortunately for those of us who are still forced to use CVS, git provides pretty good tools to do exactly what you're wanting to do. My suggestions (and what we do here at $work):
Creating the Initial Clone
Use git cvsimport to clone the CVS revision history into a git repository. I use the ...
How to send a header using a HTTP request through a curl call?
...der to my Apache server on a Linux box. How can I achieve this via a curl call?
10 Answers
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How to exit in Node.js
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Call the global process object's exit method:
process.exit()
From the docs:
process.exit([exitcode])
Ends the process with the specified code. If omitted, exit uses the 'success' code 0.
To exit with a 'failure' code:
proce...
Dynamically select data frame columns using $ and a character value
...[[var]]
mtcars[var]
You can perform the ordering without loops, using do.call to construct the call to order. Here is a reproducible example below:
# set seed for reproducibility
set.seed(123)
df <- data.frame( col1 = sample(5,10,repl=T) , col2 = sample(5,10,repl=T) , col3 = sample(5,10,repl=...
Why isn't there a Guid.IsNullOrEmpty() method
This keeps me wondering why Guid in .NET does not have IsNullOrEmpty() method (where empty means all zeros)
6 Answers
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What is the advantage of using abstract classes instead of traits?
...tor parameters
Abstract classes are fully interoperable with Java. You can call them from Java code without any wrappers. Traits are fully interoperable only if they do not contain any implementation code
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How to install latest (untagged) state of a repo using bower?
... also just use <git-url>#<branch-name> instead of adding a SHA-ID. So you can also use <git-url>#master to track the master branch.
– MKroehnert
Nov 2 '13 at 8:44
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Iterate through object properties
...y check:
for (var prop in obj) {
if (Object.prototype.hasOwnProperty.call(obj, prop)) {
// do stuff
}
}
It's necessary because an object's prototype contains additional properties for the object which are technically part of the object. These additional properties are inherited f...