Javascript Control Structures Exam Questions With Correct Answers

JAVASCRIPT CONTROL
STRUCTURES EXAM QUESTIONS
WITH CORRECT ANSWERS

In the following code, what will be the last number to print to the screen before the
program finishes?

for (var i = 0; i < 10; i++) {
if (i % 2 == 0) {
println(i);
} else {
println(2 * i);
}
} - Answer- 18

4.5.4: Meme Text Generator - Answer- function start(){
for(var i = 0; i < 50; i++){
println("I will not come to school late.");
}
}

4.5.5: The Worm - Answer- var NUM_CIRCLES = 15;

function start(){

for(var i = 0; i < 15; i++){
var circle = new Circle(NUM_CIRCLES);
circle.setPosition(i, 200);
circle.setColor(Color.grey);
add(circle);
}
}

4.5.6: Caterpillar - Answer- var NUM_CIRCLES = 15;
function start(){
for(var i = 0; i < 15; i++){
var circle = new Circle(NUM_CIRCLES);
if (i % 2 == 0) {
circle.setPosition(i, 200);
circle.setColor(Color.red);
add(circle);

, } else {
circle.setPosition(i, 200);
circle.setColor(Color.green);
add(circle);
}
}
}

How many times will the following code print "hello"?

for (var i = 3; i < 8; i++) {
println("hello");
} - Answer- 5 **YES AGAIN

How many times will the following code print "hello"?

for (var i = 0; i < 8; i += 2) {
println("hello");
} - Answer- 4

4.6.5: Count By Sevens - Answer- function start(){
for(var i = 0; i <= 500; i += 7){
println(i);
}
}

4.6.6: Powers of Two - Answer- function start(){
for(var i = 1; i <= 1000000; i *= 2){
println(i);
}
}

Why do we use constant variables? - Answer- All of the Above

Which of the following is a good example of a proper constant variable name? - Answer-
var MAX_VALUE = 100;

What will be the value of sum after this code runs?

var START = 1;
var END = 4;

function start(){
var sum = 0;
for(var i = START; i <= END; i++){
sum += i;