Tutorial by Examples: en

The following query returns the documents which have an element named "company" - cts:element-value-query( xs:QName('company'), '*', ("wildcarded"))) The following query returns the documents which have an element named "company" with an attribute named "name&...

For example, please consider the following URI: http://stackoverflow.com/questions/some-number/how-can-i-do-this/others Segment allows to retrieve a specific segment form URI string where n is a segment number. Segments are numbered from left to right. For example, the following code: $this-&gt...

$sent = $this->email->send(); //This is optional - but good when you're in a testing environment. if(isset($sent)){ echo "It sent!"; }else{ echo "It did not send."; }

But you don't just want a plain text email. You want a pretty html email. Set your config file as html: $config['mailtype'] = 'html'; If you want to pass data (like a username for example) to the html email, put them in an array: $data = array('name' => $name, 'email' => ...

There’s no API that can rename the blob file on Azure. This code snippet demonstrates how to rename a blob file in Microsoft Azure Blob Storage. StorageCredentials cred = new StorageCredentials("[Your storage account name]", "[Your storage account key]"); CloudBlobContainer c...

If you want to parse more complex command-line arguments, e.g. with optional parameters, than the best is to use google's GWT approach. All classes are public available at: https://gwt.googlesource.com/gwt/+/2.8.0-beta1/dev/core/src/com/google/gwt/util/tools/ToolBase.java An example for handling ...

Overrides: Override file: Ext.define('MyApp.override.CornField', override: 'Ext.form.field.Text', initComponent: function () { this.callParent(arguments); this.setValue('Corn!'); } ); Use in app: { xtype: 'textfield' } Extensions: Override file: Ext...

Return the length of the string in bytes. Since some characters may be encoded using more than one byte, if you want the length in characters see CHAR_LENGTH() Syntax: LENGTH(str) LENGTH('foobar') -- 6 LENGTH('fööbar') -- 8 -- contrast with CHAR_LENGTH(...) = 6

Return the number of characters in the string Syntax: CHAR_LENGTH(str) CHAR_LENGTH('foobar') -- 6 CHAR_LENGTH('fööbar') -- 6 -- contrast with LENGTH(...) = 8

const md = Rx.Observable.fromEvent(document, 'mousedown').map(true); // `md` will emit `true` whenever the mouse is pressed const mu = Rx.Observable.fromEvent(document, 'mouseup').map(false); // `mu` will emit `false` whenever the mouse is depressed

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...

The standard library module urllib.request can be used to download web content: from urllib.request import urlopen response = urlopen('http://stackoverflow.com/questions?sort=votes') data = response.read() # The received bytes should usually be decoded according the response's characte...

The received bytes have to be decoded with the correct character encoding to be interpreted as text: Python 3.x3.0 import urllib.request response = urllib.request.urlopen("http://stackoverflow.com/") data = response.read() encoding = response.info().get_content_charset() html = d...

Coments "Comments are enclosed in double quotes. BEWARE: This is NOT a string!" "They can span multiple lines." Strings 'Strings are enclosed in sigle quotes.' 'Single quotes are escaped with a single quote, like this: ''.' '''' "<--This string contains one sin...

In Smalltalk almost everything you do is sending messages to objects (referred as calling methods in other languages). There are three types of messages: Unary messages: #(1 2 3) size "This sends the #size message to the #(1 2 3) array. #size is a unary message, because it takes no argumen...

You can create extension methods to improve usability for nested collections like a Dictionary with a List<T> value. Consider the following extension methods: public static class DictListExtensions { public static void Add<TKey, TValue, TCollection>(this Dictionary<TKey, TColl...

This works well for single level right click context menu. All you need to do is create a registry entry under Classes Root HKEY_CLASSES_ROOT for specific extension. If you want to create a entry for all types of files choose * else choose extension like .pdf etc. var regmenu = Registry.ClassesR...

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 only major differences between this and a regular TCP connection are the private Key and the public certificate that you’ll have to set into an option object. How to Create a Key and Certificate The first step in this security process is the creation of a private Key. And what is this private ...