Programming in HTML5 with JavaScript and CSS3: Training Guide
Glenn Johnson
Language: English
Pages: 846
ISBN: B00DO8VVSU
Format: PDF / Kindle (mobi) / ePub
Designed to help experienced programmers develop real-world, job-role-specific skills—this Training Guide focuses on creating applications with HTML5, JavaScript, and CSS3. Build hands-on expertise through a series of lessons, exercises, and suggested practices—and help maximize your performance on the job.
• Provides in-depth, hands-on training you take at your own pace;
• Focuses on job-role-specific expertise for using HTML5, JavaScript, and CSS3 to begin building modern web and Windows 8 apps;
• Features pragmatic lessons, exercises, and practices;
• Creates a foundation of skills which, along with on-the-job experience, can be measured by Microsoft Certification exams such as 70-480;
• Coverage includes: creating HTML5 documents; implementing styles with CSS3; JavaScript in depth; using Microsoft developer tools; AJAX; multimedia support; drawing with Canvas and SVG; drag and drop functionality; location-aware apps; web storage; offline apps; writing your first simple Windows 8 apps; and other key topics.
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name, as follows. app.get('/', function (request, response) { response.redirect('default.html'); }); Add a statement to create a usernames variable and initialize it as an empty object, as follows. var usernames = {}; Add code to subscribe to the socket.io events as follows. io.sockets.on('connection', function (socket) { socket.on('sendchat', function (data) { io.sockets.emit('updatechat', socket.username, data); }); socket.on('adduser', function(username){ socket.username = username;
attributes. data. Supplies the URL of the resource to be used by the object form. Indicates one or more form ids to which the object belongs height. Specifies the height in pixels of the object name. Defines the name of the object type. Defines the MIME type of data specified in the data attribute usemap. Indicates the name of a client-side image map to be used with the object width. Specifies the width in pixels of the object Important: At a Minimum At a minimum, you
reference isPointInPath() method, CanvasRenderingContext2D context object reference lineCap property, CanvasRenderingContext2D context object reference lineJoin property, CanvasRenderingContext2D context object reference, Setting lineJoin, Saving and restoring the drawing state lineTo() method, CanvasRenderingContext2D context object reference, Saving and restoring the drawing state lineWidth property, CanvasRenderingContext2D context object reference, Setting lineWidth, Saving and restoring
described, Understanding JavaScript determining for variables, Using the switch keyword determining if same type and equal, No value coalescing operators retrieving for attributes, Using an attribute selector return, Naming variables setting for colors, Lesson 3: Working with CSS properties element, Element reference, Documenting code by using the and elements variables, Lesson 1: Introducing JavaScript, Logical Operators, Logical Operators, Using variables, Using
nonprime, there is no need to continue looping, so the break keyword is used to exit the loop. Handling errors When writing code, you always want to make sure that your code does not cause an exception. An exception is an error that occurs at runtime due to an illegal operation during execution. You should validate your variables preemptively before performing an operation that could throw an exception. For example, before you divide one variable (numerator) by another variable