Question 1

Identify the letter of the choice that best matches the phrase or definition.
-This method duplicates items within an array.

Accepted Answer

A)  array.unshift(values) 
B)  array.toString() 
C)  pop() 
D)  concat(array1,array2,...) 
E)  sort()
F) copyWithin(target,start[,end])
G) join(separator)
H) shift()
I) reverse()
J)push(values) 
A)  array.unshift(values) 
B)  array.toString() 
C)  pop() 
D)  concat(array1,array2,...) 
E)  sort()
F) copyWithin(target,start[,end])
G) join(separator)
H) shift()
I) reverse()
J)push(values)

Question 2

Identify the general structure of a for loop.

Accepted Answer

A)  for (start;continue;update)
{
Commands
} 
B)  ​for (start;update)
{
Commands
} 
C)  ​for (start;stop)
{
Commands
} 
D)  ​for (start;stop;continue)
{
Commands
} 
A)  for (start;continue;update)
{
Commands
} 
B)  ​for (start;update)
{
Commands
} 
C)  ​for (start;stop)
{
Commands
} 
D)  ​for (start;stop;continue)
{
Commands
}

Question 3

The getDate()method in a calendar app returns an integer ranging from 0 (Sunday)to 6 (Saturday).

Accepted Answer

A) True 
 B)False

Question 4

The map(callback [,thisArg])method returns the index of the first element in the array that passes a test in the callback function.

Accepted Answer

A) True 
 B)False

Question 5

The slice()method reverses the order of items in an array,making the last items first and the first items last.

Accepted Answer

A) True 
 B)False

Question 6

JavaScript supports logical operators that connect several expressions.

Accepted Answer

A) True 
 B)False

Question 7

Identify the general syntax of the do/while loop.

Accepted Answer

A)  do (continue){
Commands
}
While (continue){
Commands
} 
B)  while (continue){
Commands
}
Do (continue){
Commands
} 
C)  while {
Commands
}
Do (continue); 
D)  do {
Commands
}
While (continue); 
A)  do (continue){
Commands
}
While (continue){
Commands
} 
B)  while (continue){
Commands
}
Do (continue){
Commands
} 
C)  while {
Commands
}
Do (continue); 
D)  do {
Commands
}
While (continue);

Question 8

_________ is a section of an array.

Accepted Answer

The answer of _________ is a section of an array....

Question 9

JavaScript allows for the creation of _________,in which some array values are undefined.

Accepted Answer

The answer of JavaScript allows for the creation of _________,in...

Question 10

What is the output of the following code?
Var sum = 0;
Var x = [1,3,7,11];
X.forEach(sumArray);
Function sumArray(value){
Sum += value;
}

Accepted Answer

A)  ​0 
B)  ​231 
C)  ​11 
D)  ​22 
A)  ​0 
B)  ​231 
C)  ​11 
D)  ​22

Question 11

When a pass statement is encountered,control is passed to the statement immediately following it.

Accepted Answer

A) True 
 B)False

Question 12

Explain the length property of an array with examples.

Accepted Answer

?A JavaScript array automatically expand

Question 13

Arrays can be used to store information in a data structure known as a _________ in which new items are added to the top or to the end of the array.

Accepted Answer

The answer of Arrays can be used to store information...

Question 14

Gregor, a software developer, is developing a calendar application. He has to use several if conditional statements to ensure that the calendar displays the exact number of days present in each month of each year. He creates a dayCount array to keep track of the number of days in each month.
-Gregor wants to create a condition to ensure that all the years divisible by 4 should contain 29 days in February.Which of the following statements should he use?

Accepted Answer

A)  if (thisYear % 4 === 0){
DayCount[1] = 29;
} 
B)  if (this year/4 === 0){
DayCount[2] = 29;
} 
C)  if (this year*4==0){
DayCount[1] = 29
} 
D)  if (thisYear % 4 < = 29){
DayCount[2] = 29;
} 
A)  if (thisYear % 4 === 0){
DayCount[1] = 29;
} 
B)  if (this year/4 === 0){
DayCount[2] = 29;
} 
C)  if (this year*4==0){
DayCount[1] = 29
} 
D)  if (thisYear % 4 < = 29){
DayCount[2] = 29;
}

Question 15

Identify the general structure for accessing each value from an array using a for loop.

Accepted Answer

A)  ​for (i < array; i++){
Commands involving array[i]
} 
B)  for (var i = 0; i++; i < array.length){
Commands involving array(i)
} 
C)  for (var i = 0; i++){
Commands involving array(i)
} 
D)  for (var i = 0; i < array.length; i++){
Commands involving array[i]
} 
A)  ​for (i < array; i++){
Commands involving array[i]
} 
B)  for (var i = 0; i++; i < array.length){
Commands involving array(i)
} 
C)  for (var i = 0; i++){
Commands involving array(i)
} 
D)  for (var i = 0; i < array.length; i++){
Commands involving array[i]
}

Question 16

Identify the structure of an if statement

Accepted Answer

A)  if (condition){
Commands
} 
B)  ​if {
}(condition) 
C)  if {
Commands
} 
D)  ​if {
}
(condition){
Commands 
A)  if (condition){
Commands
} 
B)  ​if {
}(condition) 
C)  if {
Commands
} 
D)  ​if {
}
(condition){
Commands

Question 17

Identify the letter of the choice that best matches the phrase or definition.
-This method removes the last item from an array.

Accepted Answer

A)  array.unshift(values) 
B)  array.toString() 
C)  pop() 
D)  concat(array1,array2,...) 
E)  sort()
F) copyWithin(target,start[,end])
G) join(separator)
H) shift()
I) reverse()
J)push(values) 
A)  array.unshift(values) 
B)  array.toString() 
C)  pop() 
D)  concat(array1,array2,...) 
E)  sort()
F) copyWithin(target,start[,end])
G) join(separator)
H) shift()
I) reverse()
J)push(values)

Question 18

Statement labels are used to identify statements in JavaScript code so that the statements can be referenced elsewhere in a program.

Accepted Answer

A) True 
 B)False

Question 19

Index values start with 1 so that the initial item in an array has an index value of 1,the second item has an index value of 2,and so on.

Accepted Answer

A) True 
 B)False

Question 20

Identify a method that decreases array by keeping only those items that return a value of true from the callback function.

Accepted Answer

A)  ​array.every(callback [,thisArg]) 
B)  ​array.map(callback [,thisArg]) 
C)  ​array.reduce(callback [,thisArg]) 
D)  ​array.find(callback [,thisArg]) 
A)  ​array.every(callback [,thisArg]) 
B)  ​array.map(callback [,thisArg]) 
C)  ​array.reduce(callback [,thisArg]) 
D)  ​array.find(callback [,thisArg])

Identify the letter of the choice that best matches the phrase or definition. -This method duplicates items within an array.

Identify the general structure of a for loop.

The getDate()method in a calendar app returns an integer ranging from 0 (Sunday)to 6 (Saturday).

The map(callback [,thisArg])method returns the index of the first element in the array that passes a test in the callback function.

The slice()method reverses the order of items in an array,making the last items first and the first items last.

JavaScript supports logical operators that connect several expressions.

Identify the general syntax of the do/while loop.

_________ is a section of an array.

JavaScript allows for the creation of _________,in which some array values are undefined.

What is the output of the following code? Var sum = 0; Var x = [1,3,7,11]; X.forEach(sumArray); Function sumArray(value){ Sum += value; }

When a pass statement is encountered,control is passed to the statement immediately following it.

Explain the length property of an array with examples.

Arrays can be used to store information in a data structure known as a _________ in which new items are added to the top or to the end of the array.

Identify the general structure for accessing each value from an array using a for loop.

Identify the structure of an if statement

Identify the letter of the choice that best matches the phrase or definition. -This method removes the last item from an array.

Statement labels are used to identify statements in JavaScript code so that the statements can be referenced elsewhere in a program.

Index values start with 1 so that the initial item in an array has an index value of 1,the second item has an index value of 2,and so on.

Identify a method that decreases array by keeping only those items that return a value of true from the callback function.

Getting Started With Html5

Getting Started With CSS

Designing a Page Layout

Graphic Design With CSS

Designing for the Mobile Web

Working With Tables and Columns

Designing a Web Form

Enhancing a Website With Multimedia

Getting Started With Javascript

Filters

Exam 10: Exploring Arrays, loops, and Conditional Statements

Identify the letter of the choice that best matches the phrase or definition. -This method duplicates items within an array.

Identify the general structure of a for loop.

The getDate()method in a calendar app returns an integer ranging from 0 (Sunday)to 6 (Saturday).

The map(callback [,thisArg])method returns the index of the first element in the array that passes a test in the callback function.

The slice()method reverses the order of items in an array,making the last items first and the first items last.

JavaScript supports logical operators that connect several expressions.

Identify the general syntax of the do/while loop.

_________ is a section of an array.

JavaScript allows for the creation of _________,in which some array values are undefined.

What is the output of the following code? Var sum = 0; Var x = [1,3,7,11]; X.forEach(sumArray); Function sumArray(value){ Sum += value; }

When a pass statement is encountered,control is passed to the statement immediately following it.

Explain the length property of an array with examples.

Arrays can be used to store information in a data structure known as a _________ in which new items are added to the top or to the end of the array.

Identify the general structure for accessing each value from an array using a for loop.

Identify the structure of an if statement

Identify the letter of the choice that best matches the phrase or definition. -This method removes the last item from an array.

Statement labels are used to identify statements in JavaScript code so that the statements can be referenced elsewhere in a program.

Index values start with 1 so that the initial item in an array has an index value of 1,the second item has an index value of 2,and so on.

Identify a method that decreases array by keeping only those items that return a value of true from the callback function.

Getting Started With Html5

Getting Started With CSS

Designing a Page Layout

Graphic Design With CSS

Designing for the Mobile Web

Working With Tables and Columns

Designing a Web Form

Enhancing a Website With Multimedia

Getting Started With Javascript

Filters