Tutorial by Examples: at

// 3. Covariant smart pointer result (automated cleanup). #include <memory> using std::unique_ptr; template< class Type > auto up( Type* p ) { return unique_ptr<Type>( p ); } class Top { private: virtual Top* virtual_clone() const = 0; public: unique_ptr&l...

Worse ViewController: // ... myMethod: function () { this.getView().lookup('myhappyfield').setValue(100); } //... View: //... items: [ { xtype: 'textfield', reference: 'myhappyfield' } ] //... Better ViewController: // ... myMethod: function () { ...

Converts the specified string representation of a date and time to its DateTime equivalent using the specified format, culture-specific format information, and style. The format of the string representation must match the specified format exactly. The method returns a value that indicates whether th...

Detailed instructions on getting instagram set up or installed.

const source = Rx.Observable.range(1, 3) .map(x => x * x); const subscription = source.subscribe( x => console.log(`Next: ${x}`), err => console.log(`Error: ${err}`), () => console.log(`Completed`) ); // => Next: 1 // => Next: 4 // => Next: 9 // => Compl...

const source = Rx.Observable.range(1, 3) .map((x, idx, obs) => `Element ${x} was at position ${idx}`); const subscription = source.subscribe( x => console.log(`Next: ${x}`), err => console.log(`Error: ${err}`), () => console.log(`Completed`) ); // => Next: Element 1...

textOnCurve(text,offset,x1,y1,x2,y2,x3,y3,x4,y4) Renders text on quadratic and cubic curves. text is the text to render offset distance from start of curve to text >= 0 x1,y1 - x3,y3 points of quadratic curve or x1,y1 - x4,y4 points of cubic curve or Example usage: textOnCurve("...

Detailed instructions on getting linux-device-driver set up or installed.

Puppet is a configuration management solution. Users describe the desired state of a server or software and configuration management achieves this state. This brings following advantages: Configurations can be reproduced exactly the same every time, as many times as necessary Configurations for ...

private final Logger logger = Logger.getLogger(getClass().getCanonicalName()); WebView webView = new WebView(); webEngine = webView.getEngine(); webEngine.setOnAlert(event -> logger.warning(() -> "JS alert: " + event.getData()));

When using a WebView to display your own custom webpage and this webpage contains Javascript, it might be necessary to establish a two-way communication between the Java program and the Javascript in the web page. This example shows how to setup such a communication. The webpage shall display an i...

The display of elements in a list or grids is a very common pattern in mobile applications. The user sees a collection of items and can scroll through them. The collection of items can be a list, a grid or another structured representations of data. The RecyclerView widget is a more advanced and fl...

Installing TeamCity server Setting up and Running Additional Build Agents

The chart consists out of HTML container and the JavaScript code that instantiates a chart in it. HTML We use a <div> element as chart container. <div id="chartdiv" style="height: 300px;"></div> JavaScript To instantiate the chart we use AmCharts.makeChar...

Bash can easily create lists from alphanumeric characters. # list from a to z $ echo {a..z} a b c d e f g h i j k l m n o p q r s t u v w x y z # reverse from z to a $ echo {z..a} z y x w v u t s r q p o n m l k j i h g f e d c b a # digits $ echo {1..20} 1 2 3 4 5 6 7 8 9 10 11...

Sometimes it's useful to test private & protected methods as well as public ones. class Car { /** * @param mixed $argument * * @return mixed */ protected function drive($argument) { return $argument; } /** * @return bool *...

SolrJ comes as part of the Solr distribution since Solr 1.x. The latest Solr version can be downloaded here. From Solr-6.3.0 that is the latest version available, we need to get the following libraries and add them to our build path: /dist/apache-solr-solrj-.jar /dist/solrj-lib/ Once we're done,...

CREATE TABLE users (username text, email text); CREATE TABLE simple_users () INHERITS (users); CREATE TABLE users_with_password (password text) INHERITS (users); Our three tables look like this: users ColumnTypeusernametextemailtext simple_users ColumnTypeusernametextemailtext users_with_p...

With AspNetCore you can develop the application on any platform including Mac,Linux,Window and Docker. Installation and SetUp Install visual Studio Code from here Add C# extesnion Install dot net core sdk. You can install from here Now you have all the tools available. To develop the applic...

While the String.Format() method is certainly useful in formatting data as strings, it may often be a bit overkill, especially when dealing with a single object as seen below : String.Format("{0:C}", money); // yields "$42.00" An easier approach might be to simply use the To...