What do we use Curly braces '{}' in Javascript for?

To write code inside it for a function

We do not use curly braces in Javascript

We write it at the end to finish a line of code

What two things must one do in order to create a working function?

Give the function a value inside the Parameter

What is one important naming convention of functions?

A function name should be as descriptive as possible to indicate what the function does.

A function name should indicate how long the function takes to run.

Two functions with similar behavior should be given identical names to indicate the relationship between them.

Function names should be organized alphabetically.

The function name should begin with a number that indicates the order in which it should be executed.

What is the correct format to define a function? Note: Function is named "multiplyByTwo"

function multiplyByTwo() { //steps to execute function }

multiplyByTwo { //steps of function }

A function with 2 integer parameters could start with which definition?

function addNumbers(num1, num2):

What is a loop and a half?

a while loop set with while(true) that has a break in the loop body

a for loop that starts at i=1/2

code that you put inside an if statement or while-loop.

lets us repeat code as long as something is true.

function start(){ var isHeads = Randomizer.nextBoolean(); println("You flipped heads " + isHeads); } What does the code above do?

randomly assigns true or false to the variable isHeads

Prints "You flipped heads" randomly

What is an parameter?

A variable passed in from outside the function

A variable passed as a value to a function

JavaScript Functions Test

Authored by Cynthia Harrison

Computers

9th - 12th Grade

Used 20+ times

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33 questions

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MULTIPLE CHOICE QUESTION

45 sec • 1 pt

In the following function printThreeTimes:

function printThreeTimes(word){
println(word);
println(word);
println(word);
}
What is the parameter of the function?

printThreeTimes

function

word

println

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What is the output of the following program?
function start(){
var x = 5;
sumTo(x);
println(x);
}

function sumTo(num){
var sum = 0;
for(var i = 0; i <= num; i++){
sum += i;
}
println(sum);
}

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What is printed by the following program?

function product(x, y){
return x * y;
}

function difference(x, y){
return x - y;
}

function start(){
var x = 2;
var y = 5;
var value1 = product(x, y);
var value2 = difference(y, x);

var result = difference(value1, value2);
println(result);
}

-7

-13

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which of the following type of variable is visible everywhere in your code?

global

local

integer

string

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Consider the following code snippet. What is returned and printed for the value of a?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

What does the mystery function do in the code snippet below?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

mystery does nothing because there is a syntax error

returns the larger of the two values passed to it

returns the smaller of two values passed to it

mystery does nothing because there is a logical error

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Consider the following code snippet:

function mystery1(x){
var result = x + 1;
return result;
}

function mystery2(x, y){
var result = x + y;
return result;
}

function mystery3(x){
x = mystery1(x);
var result = x * x;
return result;
}
What would the following print?

var y = mystery3(11);
println(y);

121

144

This would not print anything

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JavaScript Functions Test

In the following function printThreeTimes:

function printThreeTimes(word){
println(word);
println(word);
println(word);
}
What is the parameter of the function?

What is the output of the following program?
function start(){
var x = 5;
sumTo(x);
println(x);
}

function sumTo(num){
var sum = 0;
for(var i = 0; i <= num; i++){
sum += i;
}
println(sum);
}

What is printed by the following program?

function product(x, y){
return x * y;
}

function difference(x, y){
return x - y;
}

function start(){
var x = 2;
var y = 5;
var value1 = product(x, y);
var value2 = difference(y, x);

var result = difference(value1, value2);
println(result);
}

Which of the following type of variable is visible everywhere in your code?

Consider the following code snippet. What is returned and printed for the value of a?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

What does the mystery function do in the code snippet below?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

Consider the code snippet:
function start(){
printNumbers(12, 17, 65);
printNumbers(1, 2, 3);
printNumbers(3, 3, 20);
}

function printNumbers(first, second, third){
println(first);
println(second);
println(third);
}
What are the parameters of the printNumbers function?

Which of the following is the correct way to create a function in JavaScript?

Which of the following functions will correctly return true if it is passed an odd integer value for x?

I.

function IsOdd (x) {
return (x % 2 == 1);
}

II.

functionl IsOdd (x) {
return (x / 2 == 1);
}

III.

function IsOdd (x) {
if (x % 2 == 1)
return true;
else
return false;
}

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JavaScript Functions Test

In the following function printThreeTimes:function printThreeTimes(word){ println(word); println(word); println(word);}What is the parameter of the function?

What is the output of the following program?function start(){ var x = 5; sumTo(x); println(x);}function sumTo(num){ var sum = 0; for(var i = 0; i <= num; i++){ sum += i; } println(sum);}

What is printed by the following program?function product(x, y){return x * y;}function difference(x, y){return x - y;}function start(){var x = 2;var y = 5;var value1 = product(x, y);var value2 = difference(y, x);var result = difference(value1, value2);println(result);}

Which of the following type of variable is visible everywhere in your code?

Consider the following code snippet. What is returned and printed for the value of a?function start(){var a = mystery(10, 14);var b = mystery(82, 28);println(a);println(b);}function mystery(x, y) {if (x < y){return x;}else{return y;}}

What does the mystery function do in the code snippet below?function start(){var a = mystery(10, 14);var b = mystery(82, 28);println(a);println(b);}function mystery(x, y) {if (x < y){return x;}else{return y;}}

Consider the following code snippet:function mystery1(x){var result = x + 1;return result;}function mystery2(x, y){var result = x + y;return result;}function mystery3(x){x = mystery1(x);var result = x * x;return result;}What would the following print?var y = mystery3(11);println(y);

Consider the code snippet:function start(){printNumbers(12, 17, 65);printNumbers(1, 2, 3);printNumbers(3, 3, 20);}function printNumbers(first, second, third){println(first);println(second);println(third);}What are the parameters of the printNumbers function?

Which of the following is the correct way to create a function in JavaScript?

Which of the following functions will correctly return true if it is passed an odd integer value for x?I.function IsOdd (x) {return (x % 2 == 1);}II.functionl IsOdd (x) {return (x / 2 == 1);}III.function IsOdd (x) {if (x % 2 == 1)return true;elsereturn false;}

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In the following function printThreeTimes:

function printThreeTimes(word){
println(word);
println(word);
println(word);
}
What is the parameter of the function?

What is the output of the following program?
function start(){
var x = 5;
sumTo(x);
println(x);
}

function sumTo(num){
var sum = 0;
for(var i = 0; i <= num; i++){
sum += i;
}
println(sum);
}

What is printed by the following program?

function product(x, y){
return x * y;
}

function difference(x, y){
return x - y;
}

function start(){
var x = 2;
var y = 5;
var value1 = product(x, y);
var value2 = difference(y, x);

var result = difference(value1, value2);
println(result);
}

Consider the following code snippet. What is returned and printed for the value of a?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

What does the mystery function do in the code snippet below?

function start(){
var a = mystery(10, 14);
var b = mystery(82, 28);

println(a);
println(b);
}

function mystery(x, y) {
if (x < y){
return x;
}else{
return y;
}
}

Consider the code snippet:
function start(){
printNumbers(12, 17, 65);
printNumbers(1, 2, 3);
printNumbers(3, 3, 20);
}

function printNumbers(first, second, third){
println(first);
println(second);
println(third);
}
What are the parameters of the printNumbers function?

Which of the following functions will correctly return true if it is passed an odd integer value for x?

I.

function IsOdd (x) {
return (x % 2 == 1);
}

II.

functionl IsOdd (x) {
return (x / 2 == 1);
}

III.

function IsOdd (x) {
if (x % 2 == 1)
return true;
else
return false;
}