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Diff files present in two different directories
...tput paths with the root directory.
I've also added sort to make sure the order of files will be the same in both calls of find.
The grep at the end removes information about identical input lines.
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How to remove RVM (Ruby Version Manager) from my system
...This will remove the rvm/ directory and all the rubies built within it. In order to remove the final trace of rvm, you need to remove the rvm gem, too:
gem uninstall rvm
If you've made modifications to your PATH you might want to pull those, too. Check your .bashrc, .profile and .bash_profile fil...
Rails 3.1: Engine vs. Mountable App
... app? In Rails 3.1, you can create either one with the "rails new plugin ___ " command.
5 Answers
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CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
...just call DummyClass.
class DummyClass
constructor : () ->
some_function : () ->
return "some_function"
other_function : () =>
return "other_function"
dummy = new DummyClass()
dummy.some_function() == "some_function" # true
dummy.other_function() == "other...
How to retrieve absolute path given relative
... package installed you can generally use readlink -f relative_file_name in order to retrieve the absolute one (with all symlinks resolved)
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Can I use CoffeeScript instead of JS for node.js?
...equire './lib'
from another CoffeeScript file in the same directory. (In order to do this from a JavaScript file, you'll have to add require 'coffee-script' at the top.) So, you never have to do compilation explicitly under Node, unless you're packaging your project for deployment with a tool like...
How to pass parameters to anonymous class?
...ter-less constructors in anonymous classes. These are executed in the same order as field assignments, i.e. after super() and before the rest of the actual constructor. new someclass(){ fields; {initializer} fields; methods(){} }. It's sort of like a static initializer but without the static keyword...
NullPointerException in Java with no StackTrace
...roduction – and the fix
I've tested it on Mac OS X
java version "1.6.0_26"
Java(TM) SE Runtime Environment (build 1.6.0_26-b03-383-11A511)
Java HotSpot(TM) 64-Bit Server VM (build 20.1-b02-383, mixed mode)
Object string = "abcd";
int i = 0;
while (i < 12289) {
i++;
try {
In...
Send inline image in email
...chment(filePath);
att.ContentDisposition.Inline = true;
mail.From = from_email;
mail.To.Add(data.email);
mail.Subject = "Client: " + data.client_id + " Has Sent You A Screenshot";
mail.Body = String.Format(
"<h3>Client: " + data.client_id + " Has Sent You A Screenshot</h3&...
How do I install Maven with Yum?
...apache-maven
Next add the env variables to your ~/.bashrc file
export M2_HOME=/usr/local/apache-maven
export M2=$M2_HOME/bin
export PATH=$M2:$PATH
Execute these commands
source ~/.bashrc
6:. Verify everything is working with the following command
mvn -version
...