The confirm() method
displays a dialog box with a specified message, along with an OK and a Cancel button.
Which keyword do you use to create a variable?
Variables are declared with the
var keyword
as follows. Storing a value in a variable is called variable initialization.
Which organization oversees the specification of HTML standards?
| Abbreviation W3C | Type Standards organization | Purpose Developing protocols and guidelines that ensure long-term growth for the Web. | Headquarters Cambridge, Massachusetts, United States | Location show 4 offices |
|---|
When an event occurs your script executes any code that responds to that specific event on that specific element?
What is an
event handler
for? When an event occurs, your script executes any code responds to that specific event on that specific element. Why should you place script at the end of an HTML document’s body section? You allow the browsers to render all the simple HTML content before processing JavaScript.
What organization oversees the development of web technology standards?
The World Wide Web Consortium (W3C)
is an international community where Member organizations, a full-time staff, and the public work together to develop Web standards. Led by Web inventor and Director Tim Berners-Lee and CEO Jeffrey Jaffe, W3C’s mission is to lead the Web to its full potential.
What is the difference between LET and VAR?
var and let are both used for variable declaration in javascript but the difference between them is that
var is function scoped and let is block scoped
. It can be said that a variable declared with var is defined throughout the program as compared to let.
Is used to declare a variable?
A declaration of a variable is
where a program says that it needs a variable
. For our small programs, place declaration statements between the two braces of the main method. The declaration gives a name and a data type for the variable. It may also ask that a particular value be placed in the variable.
What is the largest tag in HTML?
The h1 element
is the HTML tag for largest heading. You can use h1 for the main titles, h2 element for section titles, and h3 for smaller sub-sections.
What is the largest heading in HTML?
The heading elements are
H1
, H2, H3, H4, H5, and H6 with H1 being the highest (or most important) level and H6 the least.
What is DOM object in HTML?
The HTML DOM is
an Object Model for HTML
. It defines: … Properties for all HTML elements. Methods for all HTML elements. Events for all HTML elements.
The default event for the Page object is Load event. Similarly, every control has a default event. For example, default event for the button control is the
Click event
.
How do you know what element triggered an event?
If you want to know which element was clicked,
use event
. target . If you want to know which element you had the handler on, use event. currentTarget or, in most cases, this .
What method do we use to create an event listener?
Add an Event Handler to the window Object
The
addEventListener() method
allows you to add event listeners on any HTML DOM object such as HTML elements, the HTML document, the window object, or other objects that support events, like the xmlHttpRequest object.
What are the needs for web standards?
- URLs and URIs;
- XML;
- HTTP and HTTPS;
- Character sets;
- Encoding.
What is web standards and W3C recommendations?
Web standards are rules and guidelines established by the World Wide Web Consortium ( W3C )
developed to promote consistency in the design code which makes up a web page
. … W3C Standards promote the use of “Cascading Style Sheets” ( CSS ) or design code which is attached to the web page. rather than embedded in the page.
What controls the structure and appearance of a document or a Web page?
The
head element
contains information, also called as metadata which describes the document and its resources like scripts and style sheets. The style provides an area for defining page-specific embedded CSS styles.
