HTML5 APPLICATIONS DEVELOPMENT MANUAL

22 - Objects in JavaScript An HTML element is an object, like a house or a car. Just as with real life objects, we can access an ...

JavaScript Primitives A primitive value is a value that has no properties or methods. A primitive data type is data that has a p ...

var person = { firstName: "John", lastName: "Doe", age: 50, eyeColor: "blue" }; document.getElementById("demo").innerHTML = per ...

23 - Document Object Model (DOM) When a web page is loaded, the browser creates a Document Object Model of the page. TheHTML DOM ...

24 - Locating and Accessing Elements We can access objects in the DOM using an element’s ID. To do so, we can use the document o ...

Other methods Finding elements by id Finding elements by tag name Finding elements by class name Finding elements by CSS select ...

25 - Listening and Responding to Events Events in Programming Events are actions that a user takes. JavaScript features event ha ...

function myFunction() { document.getElementById('demo').innerHTML = "Selecting text is awesome!"; } ...

26 - Changing, Adding and Deleting Elements Updating Content in Elements Use the innerHTML property to change content or insert ...

Adding and Deleting Elements Make elements, like images, appear on screen with the document object’s createElement method. Add t ...

Display an image! function show_image(src, width, height, alt) { var img = document.createElement("img"); img.src = src; ...

27 - Coding Animations by Using JavaScript Animation is the modification of static images to create the effect of movement. Anim ...

My First JavaScript Animation My animation will go here The container element should be created with style = "position: rel ...

JavaScript animations are done by programming gradual changes in an element's style. The changes are called by a timer. When the ...

function myMove() { var elem = document.getElementById("animate"); var pos = 0; var id = setInterval(frame, 5); function frame ...

28 - Working with Images, Shapes, and Other Graphics JavaScript can display different types of graphics, from JPG and PNG files ...

Your browser does not support the canvas element. var c = document.getElementById("myCanvas"); var ctx = c.getContext("2d"); ...

29 - Transmitting Data Creating robust interactive applications requires the ability to send and receive data. For this to happe ...

JavaScript accesses data function init() { var paragraph_object = document.getElementById('paragraph'); message = "Notice that ...

of_interest = "Kroger-04"; function init() { var paragraph_object = document.getElementById("paragraph"); var data_list = sample ...