Question 1

Functions allow for code to be reused because parts of the solutions are hidden .

Accepted Answer

Functions allow for code to be reused because they encapsulate specific tasks or operations, making it easier to call and execute them multiple times without rewriting the code.

Question 2

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

Accepted Answer

When variables are listed in the parameter list of a JavaScript function, they are automatically declared within the function's local scope.

Question 3

The name of a function identifies it and must be used when the function is called .

Accepted Answer

The name of a function serves as its identifier and is used to call or invoke the function in a program.

Question 4

Function names cannot contain numbers and must not be more than eight characters long .

Accepted Answer

Function names can contain numbers (except as the first character) and can be more than eight characters long in many programming languages.

Question 5

The return value for a JavaScript function must be a variable .

Accepted Answer

The return value of a JavaScript function can be any type, including a variable, an object, a function, or a literal value such as a string, number, or boolean.

Question 6

Local variables cannot be accessed outside the functions in which they are declared .

Accepted Answer

Local variables are defined within a function and can only be accessed within that function's scope, not outside of it.

Question 7

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

Accepted Answer

The order in which you list arguments when calling a function is important because most functions expect their arguments to be provided in a specific order, unless you are using keyword arguments.

Question 8

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

In programming, it is common to use a variable in a calculation to update its own value. The statement `myNum = myNum*3 + 75/myNum;` is a valid way to update `myNum` based on its current value.

Question 9

A function definition is the same as a function call .

Accepted Answer

A function definition specifies what a function does and how it performs its task, whereas a function call is an instruction to execute the function's code.

Question 10

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

Accepted Answer

In most programming languages, the number of arguments in a function call must match the number of parameters in the function definition, unless the function is designed to accept variable numbers of arguments.

Question 11

JavaScript functions can be placed in the <head> section of a web page .

Accepted Answer

The answer of JavaScript functions can be placed in the...

Question 12

A JavaScript function include at least one parameter .

Accepted Answer

The answer of A JavaScript function include at least one...

Question 13

A computer cannot generate a truly random number .

Accepted Answer

The answer of A computer cannot generate a truly random...

Question 14

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

Accepted Answer

The answer of When two variables have the same name,...

Question 15

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

Accepted Answer

The answer of The arguments in a function call pass...

Question 16

Programmers rarely use code written by others .

Accepted Answer

The answer of Programmers rarely use code written by others...

Question 17

Variables declared within a function&#10;A) cannot be changed in that function&#10;B) can only be used inside the function&#10;C) can be used anywhere in the program&#10;D) can be used outside the function but cannot be changed outside the function

Accepted Answer

The answer of Variables declared within a function&#10;A) cannot be...

Question 18

Output directly onto a web page from JavaScript is done using the ________ built-in function .&#10;A) document . display()&#10;B) print()&#10;C) writeln()&#10;D) document . write()

Accepted Answer

The answer of Output directly onto a web page from...

Question 19

A variable declared in a function is a(n)&#10;A) independent variable&#10;B) named constant&#10;C) local variable&#10;D) global variable

Accepted Answer

The answer of A variable declared in a function is...

Question 20

When defining a function that sends a value back to the part of the program that calls it, how do you specify the result?&#10;A) by rewriting it&#10;B) by using the return statement&#10;C) by calling it&#10;D) by designating it as an argument

Accepted Answer

The answer of When defining a function that sends a...

Question 21

The inputs to a function are called&#10;A) parameters&#10;B) arguments&#10;C) identifiers&#10;D) values

Accepted Answer

The answer of The inputs to a function are called&#10;A)...

Question 22

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

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 .

Accepted Answer

The answer of What, if anything, is wrong with the...

Question 23

The values returned by the Math . random()function are between&#10;A) 0 (exclusive) and 1 (exclusive)&#10;B) 0 (inclusive) and 1 (inclusive)&#10;C) 0 (exclusive) and 1 (inclusive)&#10;D) 0 (inclusive) and 1 (exclusive)

Accepted Answer

The answer of The values returned by the Math ....

Question 24

The numbers generated by the Math . random()function&#10;A) will never be repeated&#10;B) are random because a computer is deterministic&#10;C) must be multiplied by -1 to change them to positive&#10;D) are pseudo-random

Accepted Answer

The answer of The numbers generated by the Math ....

Question 25

Given the following JavaScript function, which of the following is NOT a possible result?&#10;Function tossIt() {&#10;Return Math . random();&#10;}&#10;A) 0 . 5&#10;B) 0 . 8923871&#10;C) 0&#10;D) 1

Accepted Answer

The answer of Given the following JavaScript function, which of...

Question 26

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

Accepted Answer

The answer of If you wanted the following function to...

Question 27

After running the following JavaScript, what is the value of the variable month?
Var newDay = new Date();
Month = newDay . setMonth(4);

A) April
B) June
C) May
D) cannot tell because it depends on what the current date is

Accepted Answer

The answer of After running the following JavaScript, what is...

Question 28

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

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

Accepted Answer

The answer of Select all that apply . What does...

Question 29

Select all that apply . Which of the following are alternate terms for the word 'function'?&#10;A) procedure&#10;B) subroutine&#10;C) method&#10;D) process

Accepted Answer

The answer of Select all that apply . Which of...

Question 30

Select all that apply . Which of the following are required parts of a function?&#10;A) the local variables&#10;B) the definition&#10;C) the name&#10;D) the parameters

Accepted Answer

The answer of Select all that apply . Which of...

Question 31

Select all that apply . In JavaScript the result of a function call can be displayed to the user&#10;A) by using an alert()&#10;B) by using the document . write() method&#10;C) by using an absolute reference&#10;D) by using the document . display() method

Accepted Answer

The answer of Select all that apply . In JavaScript...

Question 32

A function ________ is the algorithm written in a programming language that computes function's result .

Accepted Answer

The answer of A function ________ is the algorithm written...

Question 33

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 34

Variables declared inside a function are ________ in scope .

Accepted Answer

The answer of Variables declared inside a function are ________...

Question 35

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

The answer of When you write code to ask the...

Question 36

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 37

A function is declared by writing its function ________ .

Accepted Answer

The answer of A function is declared by writing its...

Question 38

Date() creates a JavaScript ________ which represents a date and a time .

Accepted Answer

The answer of Date() creates a JavaScript ________ which represents...

Question 39

Joining several components together, as in: '' + '-10' + convertC2F(-10) + '' is done using the ________ operator .

Accepted Answer

The answer of Joining several components together, as in:&#10;'<tr style=&#34;background-color:00ccff...

Question 40

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 41

Other names for a function are ________ or method . Subroutine is an antiquated term for the same thing .

Accepted Answer

The answer of Other names for a function are ________...

Question 42

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...

Deck 19: Programming Functions