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Send and receive messages through NSNotificationCenter in Objective-C?
...nter defaultCenter] removeObserver:self];
[super dealloc];
}
- (id) init
{
self = [super init];
if (!self) return nil;
// Add this instance of TestClass as an observer of the TestNotification.
// We tell the notification center to inform us of "TestNotification"
// notifica...
Resolve absolute path from relative path and/or file name
... interpret the first argument relative to the path of the executing batch. It does have a shortcoming though: it miserably fails if the first argument is fully-qualified.
If you need to support both relative and absolute paths, you can make use of Frédéric Ménez's solution: temporarily change th...
What is Serialization?
I am getting started with Object-Oriented Programming (OOP) and would like to know: what is the meaning of serialization in OOP parlance?
...
Test for existence of nested JavaScript object key
...
You have to do it step by step if you don't want a TypeError because if one of the members is null or undefined, and you try to access a member, an exception will be thrown.
You can either simply catch the exception, or make a function to ...
Command not found when using sudo
...ied
In order to run a script the file must have an executable permission bit set.
In order to fully understand Linux file permissions you can study the documentation for the chmod command. chmod, an abbreviation of change mode, is the command that is used to change the permission settings of a fil...
Why does Java allow us to compile a class with a name different than the file name?
I have a file Test.java and the following code inside it.
8 Answers
8
...
How to delete items from a dictionary while iterating over it?
Is it legitimate to delete items from a dictionary in Python while iterating over it?
10 Answers
...
How to run a single RSpec test?
...nfig.filter_run_when_matching :focus
end
And then add a focus tag to the it, context or describe to run only that block:
it 'runs a test', :focus do
...test code
end
RSpec documentation:
https://www.rubydoc.info/github/rspec/rspec-core/RSpec/Core/Configuration#filter_run_when_matching-instan...
What are the pros and cons of the SVN plugins for Eclipse, Subclipse and Subversive? [closed]
...e history of a branch instead of just seeing a bunch of rows for every commit it can group commits by today, week, etc.
Mapping of trunk, branches, and tags
Subversive assumes the default svn layout: trunk, branches, tags (which you can change), so whenever you want to tag or branch it is one clic...
Timeout a command in bash without unnecessary delay
...cripts/timeout3
#!/bin/bash
#
# The Bash shell script executes a command with a time-out.
# Upon time-out expiration SIGTERM (15) is sent to the process. If the signal
# is blocked, then the subsequent SIGKILL (9) terminates it.
#
# Based on the Bash documentation example.
# Hello Chet,
# please f...