Unit 5

Lesson 2 Lists Investigate

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To do: December 8

Copy these key words in Unit 5 IN glossary.

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Unit 5 Lesson 3 - Warm Up

List -

Element -

Index -

an ordered collection of elements

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

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

Array -

a data structure in JavaScript used to represent a list.

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Warm-up

1. What is the output of the following code segment?

var strListOne = ["x", "y", "z", "3"];

console.log(strListOne[1] + strListOne[2]);

2. What is the output of the following code segment?

var strListTwo = ["x", "y", "5", "z"];

insertItem(strListTwo, 2, "d");

console.log(strListTwo[2] + strListTwo[3]);

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Warm-up

3. What is the output of the following code segment?

var strListThree = ["x", "y", "z"];

appendItem(strListThree, "t");

removeItem(strListThree, 2);

console.log(strListThree.length + " " + strListThree[2]);

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4. What is the output of the following code segment?

var myArray = [1,2,4,7,8,10];

var n = myArray[myArray.length-1];

console.log(n);

Using list.length-1 to access last item in array

var myArray = [1,2,4,7,8,10];�var last = myArray[myArray.length-1];�console.log(last);

>> 10

Go over homework

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• goFormative U5L01 Lists Explore
• AP Classroom Programming Practice part 1
• Code.org 2019-20 Unit 3 Lesson 7 Bubble 10 - using a function with a parameter

goFormative U5L02 Lists Investigate

Log into Code.org Unit 5 Lesson 2 bubble 2

AP Classroom 2021 Test REVIEW 3-2 Unit 4 programming

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Homework

• Copy 4 Unit 5 key words in IN and submit image/pdf
• Complete goFormative 05L02 Lists Investigate
• AP Classroom 2021 Test REVIEW 3-2 Unit 4 programming
• complete online and show work for each problem
• submit work to Hub

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