Tutorial by Examples: i

A large perceivable section of a web page or document, that the author feels is important enough to be included in a page summary or table of contents, for example, an area of the page containing live sporting event statistics. <div role="region"> Home team: 4<br> Away t...

A group of radio buttons. <div role="radiogroup"> <input role="radio" type="radio" aria-checked="true"> One<br> <input role="radio" type="radio" aria-checked="false"> Two<br> <input role=...

A user input where the user selects a value from within a given range. <div role="slider" aria-valuemax="100" aria-valuemin="0" aria-valuenow="25"> <div class="sliderhandle"></div> </div>

A form of range that expects the user to select from among discrete choices. <input role="spinbutton" aria-valuemax="100" aria-valuemin="0" aria-valuenow="25" type="number" value="25">

A type of checkbox that represents on/off values, as opposed to checked/unchecked values. <select role="switch" aria-checked="false"> <option>On</option> <option selected>Off</option> </select>

A list of tab elements, which are references to tabpanel elements. <ul role="tablist"> <li role="tab">Introduction</li> <li role="tab">Chapter 1</li> <li role="tab">Chapter 2</li> </ul>

A type of live region containing a numerical counter which indicates an amount of elapsed time from a start point, or the time remaining until an end point. <p> <span role="timer">60</span> seconds remaining. </p>

A contextual popup that displays a description for an element. <span aria-describedby="slopedesc">Slope</span> <div role="tooltip" id="slopedesc">y=mx+b</div> Typically, the tooltip would be hidden. Using JavaScript, the tooltip would be dis...

A grid whose rows can be expanded and collapsed in the same manner as for a tree.

An option item of a tree. This is an element within a tree that may be expanded or collapsed if it contains a sub-level group of treeitems. <ul role="tree"> <li role="treeitem"> Part 1 <ul> <li role="treeitem">Chapter 1</l...

import java.io.BufferedReader; import java.io.BufferedWriter; import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; public class ReadingUTF8TextFile { public static void main(String[] args) throws IOException { ...

import java.io.BufferedWriter; import java.io.IOException; import java.nio.charset.StandardCharsets; import java.nio.file.Files; import java.nio.file.Paths; public class WritingUTF8TextFile { public static void main(String[] args) throws IOException { //StandardCharsets is avail...

import java.nio.charset.StandardCharsets; import java.util.Arrays; public class GetUtf8BytesFromString { public static void main(String[] args) { String str = "Cyrillic symbol Ы"; //StandardCharsets is available since Java 1.7 //for ealier version use ...

Query to create table on db CREATE TABLE `user` ( `id` smallint(5) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(30) NOT NULL, `course` smallint(5) unsigned DEFAULT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB; CREATE TABLE `course` ( `id` smallint(5) unsigned NOT NULL AUTO_INCREMENT, `nam...

In general, it is considered good practice to throw by value (rather than by pointer), but catch by (const) reference. try { // throw new std::runtime_error("Error!"); // Don't do this! // This creates an exception object // on the heap and would require you to catch the ...

Build numberDescriptionProduct16.0.4366.1000Cumulative Update April 2016SharePoint Server 201616.0.4336.1000RTMSharePoint Server 201616.0.4327.1000Release CandidateSharePoint Server 201616.0.4266.100116.0.4306.1002 Beta 2SharePoint Server 2016

Updating one row UPDATE customers SET email='[email protected]' WHERE id=1 This query updates the content of email in the customers table to the string [email protected] where the value of id is equal to 1. The old and new contents of the database table are illustrated below on the left an...

Unlike other middleware functions error-handling middleware functions have four arguments instead of three: (err, req, res, next). Sample: app.use(function(err, req, res, next) { console.error(err.stack); res.status(500).send('Error found!'); });

Given a file sample: hello Hello HELLO_there A normal grep for "hello" returns: $ grep "hello" sample hello Using -i allows to ignore case and match any "hello": $ grep -i "hello" sample hello Hello HELLO_there

DBContract.java //Define the tables and columns of your local database public final class DBContract { /*Content Authority its a name for the content provider, is convenient to use the package app name to be unique on the device */ public static final String CONTENT_AUTHORITY =...