Web Development Basics

What is the purpose of the

element in HTML?

• It is used as a generic container to group and style content on a webpage.

• It is used to embed videos in HTML.

• It is used to define a table in HTML.

• It is used for creating hyperlinks in HTML.

How can you select all elements with a class name of 'example' in CSS?

• #example

• example

• .example

• .example{}

What is the syntax for declaring a function in JavaScript?

• functionName(parameters) { // function body }

• function functionName(parameters) { // function body }

• functionName(parameters) { // code here }

• functionName(parameters) { // logic here }

How can you create a flex container in CSS?

• justify-content: space-between;

• flex-direction: row;

• align-items: center;

• display: flex;

Which event occurs when the user clicks on an HTML element in JavaScript?

• Open a new browser tab

• Change the element's color to red

• Remove the element from the DOM

• Add an event listener for the 'click' event

How do you declare an array in JavaScript?

• let arr[ ]

• const arr[ ]

• let arr=new Array( )

• const array

What is event propagation in JavaScript?

• Event propagation in JavaScript only occurs during the capturing phase.

• Event propagation in JavaScript refers to the mechanism by which events are handled and passed through the DOM tree. There are two phases: capturing phase and bubbling phase.

• Event propagation in JavaScript is not related to how events are handled in the DOM.

• Event propagation in JavaScript refers to the mechanism by which events are triggered in the DOM tree.

What are the different data types in JavaScript?

• integer

• string, number, boolean, null, undefined, object, symbol, bigint

• float

• array

How do you select an element by its ID in CSS?

• .myElement

• element#myElement

• ID=myElement

• #myElement

How can you align items in a flex container to the center in CSS?

• flex-align: center;

• justify-content: center;

• text-align: center;

• align-items: center;