CSP Unit 6 Review

Lists

100

What number represents the first index in a list in Javascript?

0

200

A common method for referencing the elements in a list or string using numbers

Index

300

Name the two list functions that will increase the size of a list by either adding elements or inserting them

appendItem() and insertItem()

400

What is the final value of sum after this code runs?

var nums = [2, 4, 6];
var sum = 0;
for (var i = 0; i < nums.length; i++) { 

 sum = sum + nums[i]; 

}

12

500

var data = ["A", "B", "C", "D"];

Which index accesses the last element, regardless of list size?

data.length - 1

600

Describe two ways you access the last element in this list:

var animalsList = ["tiger", "lion", "frog"];

1st way: [animalsList.length-1]

2nd way: animalsList[2]

700

A program is designed to determine the minimum value in a list of positive numbers called List. The following program was written

var minimum = <MISSING CODE> 

for(var i = 0; i < List.length; i++){ 

 if (List[i] < minimum){   

 minimum = List[i]; 

 } 

}
console.log(“The minimum is” + minimum);

What should be put to replace <MISSING CODE> so that the program works as intended for every possible list of positive numbers? 

List[0]

Loops

100

What is the purpose of a loop?

Loops are used in programming to repeat code efficiently.

200

What are the two types of loops we have learned?

Describe the differences of how they are written

For and while loops

For loop is more condensed on one line, while the while loop is separated into multiple lines.

300

how would you access 5 from the following list:

var list = [ 2, 3, 4, 5 ];

list[3]

400

What are the 3 parts of a for loop?

1. counter variable , usually called i 

2. condition for loop to break

3. increment such as i++

500

What is the result of this loop?

var count = 1;

while (count >= 1) {

  console.log(count);

  count = count + 1;

}

Infinite loop

600

What is the final value of result after this code runs?

var nums = [1, 2, 3, 4];
var result = 0;
for (var i = nums.length - 1; i >= 0; i--) { 

 if (nums[i] % 2 == 0) { 

   result += nums[i];  

} 

}

6

700

var arr = [2,4,6,8];

var sum = 0;

for (var i = 0; i < arr.length; i++) {

  sum += arr[i] * i+1;

}

What does this print?

console.log(sum);

60

Vocab/Traversals

100

An ordered collection of elements

List

200

An individual value in a list that is assigned a unique index

Element

300

Occurs when the ending condition will never evaluate to true.

Infinite loop

400

A repetitive portion of an algorithm which repeats a specified number of times or until a given condition is met.

Iteration

500

In your own words, describe what a traversal is and how you would create one in JavaScript.

Traversal refers to the process of visiting and accessing each element in a data structure, such as a list in a specific order. Utilizing .length in a for loop can help accomplish this task.

600

A list contains 100 numbers. A loop checks every number and updates a variable only when a value meets a condition.
Which two key computer science concepts are being used together?

What are iteration and selection?

700

var arr = [3, 6, 9, 12];

for (var i = 0; i < arr.length; i++) {

  arr[i] = arr[i] / 3;

}

console.log(arr);

What is printed?

[1, 2, 3, 4]

Miscellaneous

100

What is the smallest prime number?

2

200

What is the newest NFL team?

Houston Texans

300

What is the chemical symbol for gold?

Au

400

Which mountain range is home to the Earth's five highest volcanoes?

The Andes

500

'avoir faim' what does this mean in English?

to have hunger

600

What is the longest river in Asia?

Yangtze River

700

What is anemology?

The study of wind