The first standalone R script
Standalone R scripts are not executed by the program R (R.exe under Windows), but by a program called Rscript (Rscript.exe), which is included in your R installation by default.
To hint at this fact, standalone R scripts start with a special line called Shebang line, ...
As a workaround, you may use the wildfly-specific VFS api and write your own ResourceAcessor implementation, such as this one below.
public class WildflyVFSClassLoaderResourceAccessor extends AbstractResourceAccessor {
private ClassLoader classLoader;
public WildflyVFSClassLoaderResou...
As mentioned in another example a subset of the elements of an array, called an array section, may be referenced. From that example we may have
real x(10)
x(:) = 0.
x(2:6) = 1.
x(3:4) = [3., 5.]
Array sections may be more general than this, though. They may take the form of subscript trip...
In the new Angular framework, Components are the main building blocks that compose the user interface.
So one of the first steps that helps an AngularJS app to be migrated to the new Angular is to refactor it into a more component-oriented structure.
Components were also introduced in the old Angu...
ByteStrings and Buffers
Okio is built around two types that pack a lot of capability into a straightforward API:
ByteString is an immutable sequence of bytes. For character data, String is fundamental. ByteString is String's long-lost brother, making it easy to treat binary data as a value. This c...
Starting with Android 3.1 all applications, upon installation, are placed in a stopped state. While in stopped state, the application will not run for any reason, except by a manual launch of an activity, or an explicit intent that addresses an activity ,service or broadcast.
When writing system ap...
Override Pagination Style:
Every available pagination style can be overridden by creating a new class that inherits from one of the available styles and then alters its parameters:
class MyPagination(PageNumberPagination):
page_size = 20
page_size_query_param = 'page_size'
max_page...
A generalization of std::condition_variable, std::condition_variable_any works with any type of BasicLockable structure.
std::cv_status as a return status for a condition variable has two possible return codes:
std::cv_status::no_timeout: There was no timeout, condition variable was notified
st...
Installing The Node Module
You can install this module by running the command below in your project directory:
npm install twilio
Sending Your Message
const accountSID = ''; // Obtained from the Twilio Console
const authToken = ''; // Obtained from the Twilio Console
const client = requi...
By using a module loader like Webpack we can benefit the built-in module system available in ES6 (as well as in TypeScript). We can then use the import and export features that allow us to specify what pieces of code can we are going to share between different parts of the application.
When we then...
Most of the web applications use the session object to store some important information. This examples show how you can test such application using Flask-Testing. Full working example is also available on github.
So first install Flask-Testing in your virtualenv
pip install flask_testing
To be ...
An example of implementation which give a possibility to detect if user single or double tap on UITableViewCell.
override func viewDidLoad() {
viewDidLoad()
let doubleTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleDoubleTap(sender:)))
double...
An example of implementation UITableView which allows to detect if cell has been tapped single or double time.
override func viewDidLoad() {
viewDidLoad()
let doubleTapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(handleDoubleTap(sender:)))
doubleTa...
To create a background with a gradient you can use the CAGradientLayer class:
Swift 3.1:
func createGradient() {
let caLayer = CAGradientLayer()
caLayer.colors = [UIColor.white, UIColor.green, UIColor.blue]
caLayer.locations = [0, 0.5, 1]
caLayer.bounds = self.bounds
self...
This example show you how you add new sounds to your MOD and play them. First of all you need a sound file which has the format *.ogg. Any other format is not allowed by the Minecraft application and will be rejected.
The soundfile has the name: sound1.ogg
Put the sound file under the following pa...
Ex1:-
let str1 = 'stackoverflow';
let str2 = 'flowerovstack';
These strings are anagrams.
// Create Hash from str1 and increase one count.
hashMap = {
s : 1,
t : 1,
a : 1,
c : 1,
k : 1,
o : 2,
v : 1,
e : 1,
r : 1,
f : 1,
l : 1,
w : 1...
Solves problem of: access denied for user root using password YES
Stop mySQL:
sudo systemctl stop mysql
Restart mySQL, skipping grant tables:
sudo mysqld_safe --skip-grant-tables
Login:
mysql -u root
In SQL shell, look if users exist:
select User, password,plugin FROM mysql.user ;
U...
CREATE INDEX ord_customer_ix ON orders (customer_id);
By default, if we do not mention anything, oracle creates an index as a b-tree index. But we should know when to use it.
B-tree index stores data as binary tree format. As we know that, index is a schema object which stores some sort of entry...
