Reference no: EM131047217

JavaScript Questions

Question 1

What will the output be from the following code segment?var result;var problem = 37 % 7;document.write("

The value of result is " + problem +".

");

A. The value of result is 7.

B. The value of result is 5.2.

C. The value of result is 35.

D. The value of result is 2.

Question 2

Which of the following uses correct syntax to receive a value stored in totalCost? The value is beingreturned by a function named grandTotal (which is of type double)into a variable nameddiscountValue.

A. discountValue=grandTotal;

B. discountValue = totalCost;

C. grandTotal(totalCost)=discount(value);

D. discountValue = grandTotal(totalcost);

Question 3

What is the value of returnValue after the following code has been executed?x = "150";y = "100";returnValue= x + y;

A. You cannot perform a mathematical operation on these values. An error message will be generated.

B. 150100

C. 250

D. 150

Question 4

When you assign a string value to a variable, you must enclose the text in quotation marks.

True

False

Question 5

Web pages are identified by a unique address called a:

A. Uniform Resource Locator

B. Uniform Response Locator

C. Universal Resource Locator

D. Uniform Resource Link

Question 6

Declaring a variable is the same as initializing a variable.

True

False

Question 7

What is the value of returnValue after the following code has been executed?x = "150";y = "100";returnValue= x - y;

A. 50

B. You cannot perform a mathematical operation on these values. An error message will be generated.

C. 150100

D. 150

Question 8

An object name that is followed by parentheses represents an array.

True

False

Question 9

What is the printed after the following code has been executed?var x(10);var i = 3;x(i) = 7;document.write("

The stored value is " + x(3) +".

");

A. 10

B. 3

C. 7

D. 13

Question 10

A(n) _____ statement is used by a function to return a value.

A. return

B. Assignment

C. Call

D. Pass

Question 11

Define and discuss three of the following Array methods:

•join

•slice

•shift and unshift

•pop

•concat

•sort.