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