WGU C777 UNIT 3: JAVASCRIPT UPDATED 2024
QUESTIONS AND ANSWERS WITH VERIFIED
SOLUTIONS 100%
.toUpperCase()
Which method convert a string value to uppercase letters?
abort
Which event occurs when the loading of an image is terminated?
blur
Which event occurs when a user clicks the mouse button outside of a particular input
field?
click
Which event occurs when the user clicks on a link or form element?
change
Which event occurs when a user modifies the value of a form field?
error
Which event occurs when there is a problem loading an external image or resource?
focus
Which event occurs when a user clicks into a form field?
load
Which event occurs when a page is opened?
mouseOver
Which event occurs when the user moves the mouse pointer over a link, image or
other visible element on a page?
mouseOut
Which event occurs when the mouse pointer leaves a link, image or other visible
element on a page?
reset
Which event occurs when a form's Reset button is clicked?
select
Which event occurs when the user highlights the text in a form field?
submit
Which event occurs when a form's Submit button is clicked?
unload
Which event occurs when a page closed?
properties
What are attributes of an object, such as height, color, font size, sentence length and
so forth?
methods
What are actions that an object can be made to perform?
alert()
Which method creates a pop-up box with the specified message string, which the
user can dismiss by clicking a button in the box?
prompt()
Which method creates a pop-up box with the specified message string and requests
user input into a text field in the box?
, confirm()
Which method creates a pop-up box with the specified message string and requests
user confirmation by clicking the OK or Cancel button in the box?
document.write()
Which method writes the specified message string in the page?
variable
What is a named space of memory?
=
Which operator is used to assign values?
number
Which data type holds any numeric value used for mathematical operations?
string
Which data type holds any string of alphanumeric characters used for words or for
numbered phrases that are not mathematically manipulated?
var birthYear = "1956"
Which expression creates a string value?
var birthYear = 1956
Which expression creates an integer value?
Boolean
Which data type holds True or False values only?
null
Which value indicates that a user enters nothing in a text box then submits the form?
undefined
Which value indicates that a variable has no value assigned yet?
expression
What is a part of a statement that is evaluated as a value?
operator
What is a symbol or character used in expressions to store or evaluate a value?
Assignment
Which type of operator assigns a value to a variable using the equal symbol?
Example: myNumber = 25
Arithmetic
Which type of operator evaluates to a number?
Example: 25 + 75
Logical
Which type of operator will evaluate to true or false?
Example: 25 < 75
Comparison
Which type of operator compares two values and returns a true or false value?
Example: z == 10
Conditional
Which type of operator makes decisions in a script?
Example: (a > b) ? a++ : a--
concatenation
QUESTIONS AND ANSWERS WITH VERIFIED
SOLUTIONS 100%
.toUpperCase()
Which method convert a string value to uppercase letters?
abort
Which event occurs when the loading of an image is terminated?
blur
Which event occurs when a user clicks the mouse button outside of a particular input
field?
click
Which event occurs when the user clicks on a link or form element?
change
Which event occurs when a user modifies the value of a form field?
error
Which event occurs when there is a problem loading an external image or resource?
focus
Which event occurs when a user clicks into a form field?
load
Which event occurs when a page is opened?
mouseOver
Which event occurs when the user moves the mouse pointer over a link, image or
other visible element on a page?
mouseOut
Which event occurs when the mouse pointer leaves a link, image or other visible
element on a page?
reset
Which event occurs when a form's Reset button is clicked?
select
Which event occurs when the user highlights the text in a form field?
submit
Which event occurs when a form's Submit button is clicked?
unload
Which event occurs when a page closed?
properties
What are attributes of an object, such as height, color, font size, sentence length and
so forth?
methods
What are actions that an object can be made to perform?
alert()
Which method creates a pop-up box with the specified message string, which the
user can dismiss by clicking a button in the box?
prompt()
Which method creates a pop-up box with the specified message string and requests
user input into a text field in the box?
, confirm()
Which method creates a pop-up box with the specified message string and requests
user confirmation by clicking the OK or Cancel button in the box?
document.write()
Which method writes the specified message string in the page?
variable
What is a named space of memory?
=
Which operator is used to assign values?
number
Which data type holds any numeric value used for mathematical operations?
string
Which data type holds any string of alphanumeric characters used for words or for
numbered phrases that are not mathematically manipulated?
var birthYear = "1956"
Which expression creates a string value?
var birthYear = 1956
Which expression creates an integer value?
Boolean
Which data type holds True or False values only?
null
Which value indicates that a user enters nothing in a text box then submits the form?
undefined
Which value indicates that a variable has no value assigned yet?
expression
What is a part of a statement that is evaluated as a value?
operator
What is a symbol or character used in expressions to store or evaluate a value?
Assignment
Which type of operator assigns a value to a variable using the equal symbol?
Example: myNumber = 25
Arithmetic
Which type of operator evaluates to a number?
Example: 25 + 75
Logical
Which type of operator will evaluate to true or false?
Example: 25 < 75
Comparison
Which type of operator compares two values and returns a true or false value?
Example: z == 10
Conditional
Which type of operator makes decisions in a script?
Example: (a > b) ? a++ : a--
concatenation
