Question 1

When calling a function, it does not matter which order you list the arguments .

Accepted Answer

A) True 
 B)False  False

Question 2

Given the following JavaScript function, which of the following is NOT a possible result?
Function tossIt() {
Return Math . random();
}

Accepted Answer

A)   0 . 5
B)   0 . 8923871
C)   0
D)   1 D

Question 3

When you write code to ask the computer to run or execute the statements in a function, this is referred to as ________ the function .

Accepted Answer

calling

Question 4

If a function definition contains two parameters, two arguments must be included in the function call .

Accepted Answer

A) True 
 B)False

Question 5

The HTML ________ tag provides an area where JavaScript can draw lines and figures .

Accepted Answer

The answer of The HTML ________ tag provides an area...

Question 6

When two variables have the same name, but one is global and one is local, the JavaScript program will not run .

Accepted Answer

A) True 
 B)False

Question 7

A variable cannot be used as part of a calculation to assign a value to itself . For example, this JavaScript statement would cause an error, assuming myNum is a numeric variable that has been previously declared and initialized:myNum = myNum*3 + 75/myNum;

Accepted Answer

A) True 
 B)False

Question 8

If you wanted the following function to return only the two values of 0 and 1, how would you re-write line 2?
1 ) function tossIt() {
2 ) return Math . random();
3 ) }

Accepted Answer

A)   return Math . round() ;
B)   return Math . round(Math . random() ) ;
C)   return Math . round(random() ) ;
D)   This cannot be done .

Question 9

A(n) ________ is a programming structure with a name, an optional parameter list, and a definition that encapsulates an algorithm .

Accepted Answer

The answer of A(n) ________ is a programming structure with...

Question 10

Output directly onto a web page from JavaScript is done using the ________ built-in function .

Accepted Answer

A)   document . display() 
B)   print() 
C)   writeln() 
D)   document . write()

Question 11

What, if anything, is wrong with the following JavaScript code?

Accepted Answer

A)   You cannot use document . write()  to display an image; it can only display text .
B)   The outer double quotes are not needed with the document . write()  function .
C)   You cannot use the document . write()  function with JavaScript; it must be used with a form .
D)   Nothing is wrong with this code .

Question 12

When a function is called, you write the function's name and include any necessary arguments (that is, input values) inside ________ .

Accepted Answer

The answer of When a function is called, you write...

Question 13

Functions that are written so they can be reused in other programs are considered ________ .

Accepted Answer

The answer of Functions that are written so they can...

Question 14

Variables in the parameter list of a JavaScript function are declared automatically .

Accepted Answer

A) True 
 B)False

Question 15

The numbers generated by the Math . random()function

Accepted Answer

A)   will never be repeated
B)   are random because a computer is deterministic
C)   must be multiplied by -1 to change them to positive
D)   are pseudo-random

Question 16

Select all that apply . Which of the following are required parts of a function?

Accepted Answer

A)   the local variables
B)   the definition
C)   the name
D)   the parameters

Question 17

Select all that apply . What does the following command do?
Ctx . quadraticCurveTo(20,20,20,50);

Accepted Answer

A)   The curve will end at the point where x = 20 and y = 50
B)   The curve will start at the point where x = 20 and y = 20
C)   It specifies a curved line .
D)   The curve will start at the point where x = 20 and y = 50

Question 18

Programmers rarely use code written by others .

Accepted Answer

A) True 
 B)False

Question 19

The arguments in a function call pass values to the parameters, matched in order from left to right .

Accepted Answer

A) True 
 B)False

Question 20

The inputs to a function are called

Accepted Answer

A)   parameters
B)   arguments
C)   identifiers
D)   values

Exam 19: Programming Functions

When calling a function, it does not matter which order you list the arguments .

Given the following JavaScript function, which of the following is NOT a possible result? Function tossIt() { Return Math . random() ; }

When you write code to ask the computer to run or execute the statements in a function, this is referred to as ________ the function .

If a function definition contains two parameters, two arguments must be included in the function call .

The HTML ________ tag provides an area where JavaScript can draw lines and figures .

When two variables have the same name, but one is global and one is local, the JavaScript program will not run .

A variable cannot be used as part of a calculation to assign a value to itself . For example, this JavaScript statement would cause an error, assuming myNum is a numeric variable that has been previously declared and initialized:myNum = myNum*3 + 75/myNum;

If you wanted the following function to return only the two values of 0 and 1, how would you re-write line 2? 1 ) function tossIt() { 2 ) return Math . random() ; 3 ) }

A(n) ________ is a programming structure with a name, an optional parameter list, and a definition that encapsulates an algorithm .

Output directly onto a web page from JavaScript is done using the ________ built-in function .

What, if anything, is wrong with the following JavaScript code? <script>document . write("<img src = 'puppy . JPG'/>") ;</script>

When a function is called, you write the function's name and include any necessary arguments (that is, input values) inside ________ .

Functions that are written so they can be reused in other programs are considered ________ .

Variables in the parameter list of a JavaScript function are declared automatically .

The numbers generated by the Math . random() function

Select all that apply . Which of the following are required parts of a function?

Select all that apply . What does the following command do? Ctx . quadraticCurveTo(20,20,20,50) ;

Programmers rarely use code written by others .

The arguments in a function call pass values to the parameters, matched in order from left to right .

The inputs to a function are called