Web Programming - Week 4

Question 1

What is the window object

Answer 1

The global object of JavaScript in the browser

Question 2

What are the three kinds of popup boxes in JavaScript

Answer 2

window. alert - Displays alert with content and OK button
window. prompt - For text input
window. confirm - To verify or accept something

Question 3

What is the purpose of jQuery

Answer 3

To make it much easier to use JavaScript on the website

Question 4

Advantages of jQuery code

Answer 4

Allows less code to be written

Allows reusability with different JavaScript code

Question 5

Write document.getElementsById(“myheader”) in jQuery notation

Answer 5

$(“myHeader”)

Question 6

Write document.getElementsByClassName(“divClass”)

Answer 6

$(“.divClass”)

Question 7

Write code that accesses all < p > elements with id “intro”

Answer 7

$(“p.intro”)

Question 8

How to access the jQuery library

Answer 8

< script src=”jquery-3.5.1.min.js >< /script > in the head tag

Question 9

JQuery Syntax

Answer 9

$(selector).action()

Question 10

What is the method to run code when a website is finished loading

Answer 10

The (document).ready() method

Question 11

What is the p.toggle method

Answer 11

Toggle(ms) shows or hides a paragraph

Question 12

The jQuery CSS method

Answer 12

$(“div”).css ({property : value, property : value, etc…});

Question 13

jQuery filtering methods

Answer 13

first()
last()
eq() - returns element with a specific index

filter()
not()

Question 14

JQuery class methods

Answer 14

addClass()
removeClass()
toggleClass()

Question 15

Most common jQuery Mouse events

Answer 15

click()
dblclick()
mouseenter()
mouseleave()

Question 16

Most common jQuery Keyboard events

Answer 16

keypress()
keydown()
keyup()

Question 17

Most common jQuery Form events

Answer 17

submit()
change()
focus()
blur()

Question 18

Most common jQuery Document/Window events

Answer 18

load()
resize()
scroll()
unload()