5. b
7. a
9. b
10. b and c

Answer:
var countingNumbers = new Array(100)
var evenNumbers = new Array(100)
var oddNumbers = new Array(100)
var ctr

for (ctr=0; ctr<=99; ctr++) { //May also use ctr<100 instead of ctr<=99
countingNumbers[ctr] = ctr + 1 //Could also have the loop go from 1 to 100 and then
} // write countingNumbers[ctr-1] = ctr

for (ctr=0; ctr<=99; ctr++) { //May also use ctr<100 instead of ctr<=99
evenNumbers[ctr] = 2*(ctr+1) //Could also have the loop go from 1 to 100 and then
} // write evenNumbers[ctr-1] = 2*ctr

for (ctr=0; ctr<=99; ctr++) { //May also use ctr<101 instead of ctr<=100
oddNumbers[ctr] = 2*(ctr+1) – 1 //Could also have the loop go from 1 to 100 and then
} // write oddNumbers[ctr-1] = 2*ctr - 1

Answer:
var theNumber = prompt("Please enter a number from 2 to 10", " ")
var randomNumbers = new Array(theNumber)
var ctr
for (ctr=0; ctr<theNumber; ctr++) { //May also use ctr<=(theNumber-1) instead of
randomNumbers[ctr] = Math.random() // ctr<theNumber
}

Answer:
The basic algorithm to find the max value in the array is as follows:
1. Declare a variable named theMax, which will store the maximum value.
2. Set the value of theMax to the first value in the array. In other words, we start off by assuming that the first value in the array is the maximum value.
3. Proceed through the array one element at a time using a for loop. For each element, use a conditional statement to check if the value of the element is greater than the value stored in theMax. If it is greater, then we make that value the new value of theMax and continue to the next element. If it isn’t, we do nothing and continue to the next element.
4. Once we have gone through the whole array, the true maximum value will be stored in theMax.

Code:
function maxValue(theArray, numValues) {
var theMax = theArray[0]
for (ctr=1; ctr<numValues; ctr++) {
if (theArray[ctr] > theMax) {
theMax = theArray[ctr] //Change the value of theMax to the new greater value
}
}
return theMax
}

Answer:
The key change is to replace the form name question1 with forms[0] and the form name question2 with forms[1]:

var scoreA = 0, scoreB = 0, scoreC = 0
if (document.forms[0].choiceRB[0].checked) {
scoreA = scoreA + 1
}
else if (document.forms[0].choiceRB[1].checked) {
scoreB = scoreB + 1
}
else if (document.forms[0].choiceRB[2].checked) {
scoreC = scoreC + 1
}

if (document.forms[1].choiceRB[0].checked) {
scoreA = scoreA + 1
}
else if (document.forms[1].choiceRB[1].checked) {
scoreB = scoreB + 1
}
else if (document.forms[1].choiceRB[2].checked) {
scoreC = scoreC + 1
}

var ctr
for (ctr=0; ctr<2; ctr++) { //May also use ctr<=1 instead of ctr<2
if (document.forms[ctr].choiceRB[0].checked) {
scoreA = scoreA + 1
}
else if (document.forms[ctr].choiceRB[1].checked) {
scoreB = scoreB + 1
}
else if (document.forms[ctr].choiceRB[2].checked) {
scoreC = scoreC + 1
}
}

for (ctr=0; ctr<25; ctr++) { //May also use ctr<=24 instead of ctr<25
//Same conditional statement code as above
}

2. d
8. a
10. c

var firstLetter1 = customer1.charAt(0) //customer1.substring(0,1) could also be used
var firstLetter2 = customer2.charAt(0)
if (firstLetter1 < firstLetter2) {
document.resultsForm.sortBox.value = customer1 + ", " + customer2
}
else if (firstLetter1 > firstLetter2) {
document.resultsForm.sortBox.value = customer2 + ", " + customer1
}
else {
document.resultsForm.sortBox.value = "Both customer names start with the same letter."
}

The code for the form will be:
<form id="londonForm" name="londonForm">
<input type="button" name="b1" value="Display London Time" onclick="londonTime()" /><br />
Day of week (0 = Sunday): <input type="text" name="dayBox" size="1" /><br />
Hours: <input type="text" name="hoursBox" size="2" /><br />
Minutes: <input type="text" name="minutesBox" size="2" /><br />
</form>

Where the function is:
function londonTime() {
var currentDate = new Date() //Create date object
document.londonForm.dayBox.value = currentDate.getUTCDay()
document.londonForm.hoursBox.value = currentDate.getUTCHours()
document.londonForm.minutesBox.value = currentDate.getUTCMinutes()
}

function setDateCookie() {
var currentDate = new Date()
var currentMonth = currentDate.getMonth()
var currentDayOfMonth = currentDate.getDate()
var expDate = currentDate.setMonth(currentMonth + 9)
document.cookie = "lastVisitMonth=" + currentMonth + ";expires=" + expDate.toGMTString()
document.cookie = "lastVisitDate=" + currentDayOfMonth + ";expires=" + expDate.toGMTString()
}

6. formal parameters, actual parameters
7. d

<form id="sampleForm" name="sampleForm">
<input type="text" name="firstBox" value="Box 1" size="15" />
<input type="text" name="secondBox" value="Box 2" /><br />
<input type="text" name="thirdBox" value="Box 3" />
<input type="text" name="fourthBox" />
</form>

(a)
function processResults(theMessage) {
document.messageDisplay.outputBox.value = theMessage
}

(b)
function processResults(box1, box2) {
box2.value = box1.value
}

(a)
function processResults(theMessage, theMessageBox) {
theMessageBox.value = theMessage
}

(b)
function processResults(theForm) {
theForm.outputBox.value = theForm.inputBox.value
}

<form method="post" enctype="text/plain" action="mailto:studentsurvey@anonymouspollster.org">
Please enter your age:<br />
<input type="text" name="ageBox" size="3" /><br />
Please enter your gender (M or F):<br />
<input type="text" name="genderBox" size="1" /><br />
Please enter your school year (Frosh, Soph, Jr, or Sr):<br />
<input type="text" name="schoolyearBox" size="5" /><br />
<input type="submit" value="Submit information" />
<input type="reset" value="Erase info and start over" />
</form>

1. c
4. a, b, c, and d
5. d
9. c

(a) A loosely typed programming language is a language that allows a given variable to store different types of values at different times. For example, at one point it might contain a number value and at another point a string value. (A strongly typed language does not allow this flexibility—any given variable may only store one type of value.)

(b) A boolean value is a value that is either true or false.

(c) Variable scope refers to where in a script or program a variable may be used. A variable with local scope (a local variable) may only be used inside the function within which it is declared. A variable with global scope (a global variable) may be used anywhere in a source document.

A local variable is declared inside a function and may only be used inside that function. A global variable is declared outside of a function (but in a <script> element of course) and may be used in any <script> element in that source document. Global variables are convenient because, once declared, they may be used anywhere in the document. But such global use can lead to programming errors in longer programs. So in general it is better to make your variables local ones whenever possible.

<script type="text/javascript">
function testingVariables() {
var num1 = 19.54
var name3 = "Theodore Roosevelt"
var matchFound = true
num1 = 29.1
name3 = "Abraham Lincoln"
matchFound = false
}
</script>

<script type="text/javascript">
var luckyNumber = 10*Math.random() //The var keyword is not required
var luckyNumber2 = Math.floor(100*Math.random()) + 1
</script>

<script type="text/javascript">
var hallOfFamer //Declare global variable (use of var is optional)

function fullName(firstName, lastName) {
var theName //Could also write these two lines as one line:
theName = firstName + " " + lastName // var theName = firstName + " " + lastName
return theName
}

hallOfFamer = fullName("Babe", "Ruth")
</script>