Deck 16: Javascript and Event Handling: Understanding Expressions, Methods, and Events

Question 1

JavaScript is a _______________ language

A)Object-Oriented
B)High-level
C)Assembly-language
D)Object-Based

Answer 1

Object-Based

Question 2

A conditional expression is also called a

A)Alternate to if-else
B)Immediate if
C)If-then-else statement
D)None of the above

Answer 2

Immediate if

Question 3

The "var" and "function" are

A)Keywords
B)Declaration statements
C)Datatypes
D)Prototypes

Answer 3

Declaration statements

Question 4

The method or operator used to identify the array is

A)isarrayType()
B)==
C)===
D)typeof

Question 5

What will happen if reverse() and join() methods are used simultaneously ?

A)Reverses and stores in the same array
B)Reverses and concatenates the elements of the array
C)Reverses
D)All of the above

Question 6

The pop() method of the array does which of the following task ?

A)decrements the total length by 1
B)increments the total length by 1
C)prints the first element but no effect on the length
D)None of the above

Question 7

The '$' present in the RegExp object is called a

A)character
B)matcher
C)metacharacter
D)metadata

Question 8

The regular expression to match any one character not between the brackets is

A)[...]
B)[^]
C)[^...]
D)[\D]

Question 9

The type that specifies what kind of event occured is

A)event type
B)even target
C)Both a and b
D)None of the above

Question 10

Which is the object on which the event occured or with which the event is associated?

A)event type
B)event target
C)Both a and b
D)None of the above

Question 11

In general, event handler is nothing but

A)function
B)interface
C)event
D)handler

Question 12

When will the browser invoke the handler?

A)Program begins
B)Any event occurs
C)Specified event occurs
D)None of the above

Question 13

Which are the events that have default actions that can be canceled by event handlers?

A)Submit and form-related events
B)Reset and form-related events
C)Submit and reset events
D)None of the mentioned

Question 14

The events that represents occurrences related to the browser window are

A)Window
B)Element
C)Display
D)Handlers

Question 15

Which event is fired when a document and all of its external resources are fully loaded and displayed to the user?

A)Window
B)Load
C)Element
D)Handler

Question 16

Which is the opposite to the load event in JavaScript?

A)dontload
B)postload
C)preload
D)unload

Question 17

When are the mouse events generated?

A)When user clicks the mouse over a document
B)When user moves the mouse over a document
C)Both a and b
D)None of the above

Question 18

When is the mouseover event fired?

A)When mouse is moved over a new element
B)When mouse is clicked
C)When mouse is both moved and clicked
D)None of the above

Question 19

The focus and blur events are also part of

A)Element events
B)Handler events
C)Window events
D)Scroll events

Question 20

Which syntax is used to describe elements in CSS?

A)Protectors
B)Selectors
C)Both a and b
D)None of the above

Question 21

The C in CSS stands for

A)Continuous
B)Cascaded
C)Contentional
D)Cascading

Question 22

When are the keyboard events fired?

A)When user manually calls the button
B)When user clicks a key
C)When the user calls the modifier
D)All of the above

Question 23

What PHP stands for?

A)Hypertext Preprocessor
B)Pre Hypertext Processor
C)Pre Hyper Processor
D)Pre Hypertext Process

Question 24

Which of the following tags is not a valid way to begin and end a PHP code block?

A)<% %>
B)<? ?>
C)<! !>
D)<? php ?>

Question 25

Variables always start with a ........ in PHP

A)Pond-sign
B)Yen-sign
C)Dollar-sign
D)Euro-sign