JavaScript 1 Answers 1. Intro To Lessons 2-10

JavaScript 1 Answers1. Intro to lessons 2-101.1. use alert to show a messagealert('Hello Mike, welcome to Code Avengers')1.2. run code that uses prompt to ask a questionClick and answer the questions1.3. use commands to move a robotrobot.forward(5)1.4. run an example project//This code asks the user a questionvar answer prompt('Why do you want to learn to code?\n1. Tobuild cool apps\n2. Get a great job\n3. Make lots ofmoney\n4. All of the above')3.2. do addition and subtraction7273.3. do multiplication and division321623.4. do operations in the correct order81023.5. do operations in the correct order1281.5. review quizReview Quiz Questions:1.2.3.4.alert*promptbug2. Display messages with [[alert]]4. Basic math calculations4.1. do a power calculation by multiplyingalert(2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2 * 2)4.2. do a decimal additionalert(16.7 16.7)2.1. complete the alert messagealert('Most software revenue in 2011: Microsoft US 54.27billion, IBM US 22.49 billion')4.3. use to join textalert('16.7' 16.7)2.2. use \n to put text on a new line4.4. display the result of a calculation with an alertalert('Most software revenue in 2011:\nMicrosoft US 54.27billion\nIBM US 22.49 billion')alert((16.7 16.7) / 8 * 1000000000)2.3. add data on a new line in an alert messagealert('Most software revenue in 2011:\nMicrosoft US 54.27billion\nIBM US 22.49 billion\nOracle US 20.96')2.4. add another alert commandalert('Most software revenue in 2011:\nMicrosoft US 54.27billion\nIBM US 22.49 billion\nOracle US 20.96')alert('Top websites:\nGoogle\nFacebook\nYouTube')2.5. use " " instead of ' 'alert("Most software revenue in 2011:\nMicrosoft US 54.27billion\nIBM US 22.49 billion\nOracle US 20.96")alert("Top websites:\nGoogle\nFacebook\nYouTube")3. Order of operation math rules3.1. do a simple calculationalert(100 ‐ 27)4.5. add text to explain the calculationalert('Google donation ' (16.7 16.7) / 8 * 1000000000)5. Store data with '''variables'''5.1. display calculation results with an alert//show estimated spread of wormalert('Number of infected computers' '\n20min: ' (160000 * 1.25) '\n40min: ' (160000 * 1.25 * 1.25) '\n60min: ' (160000 * 1.25 * 1.25 * 1.25))5.2. update the calculation//show estimated spread of wormalert('Number of infected computers' '\n20min: ' (240000 * 1.5) '\n40min: ' (240000 * 1.5 * 1.5) '\n60min: ' (240000 * 1.5 * 1.5 * 1.5))

5.3. create a variable7.1. move the robot forwardvar initial 240000var rate 1.5//show estimated spread of wormalert('Number of infected computers' '\n20min: ' (initial * rate) '\n40min: ' (initial * rate * rate) '\n60min: ' (initial * rate * rate * rate))robot.forward(4)7.2. turn the robot ot.forward(2)robot.right()robot.forward(3)5.4. update the variablesvar initial 280000var rate 1.4//show estimated spread of wormalert('Number of infected computers' '\n20min: ' (initial * rate) '\n40min: ' (initial * rate * rate) '\n60min: ' (initial * rate * rate * rate))7.3. turn the robot obot.left()robot.forward(3)5.5. set variable values using other variables7.4. turn the robot 180 degreesvar initial 280000var rate 1.4var 20min initial * rate//show estimated spread of wormalert('Number of infected computers' '\n20min: ' ( 20min) '\n40min: ' ( 20min * rate) '\n60min: ' ( 20min * rate * 6. Read error messages, fix mistakes7.5. move the robot through a path6.1. fix bugs in an alert RUS ALERT. Dr.Hackit is at it again!')6.2. fix bugs in alert commandsalert('VIRUS ALERT. Dr.Hackit is at it again!')alert('All S.C.R.I.P.T. agents report to your workstationsimmediately!')8. Ask questions with [[prompt]]8.1. create a prompt6.3. fix bugs in variable namesprompt('What is your name?')prompt('What is your age?')var abbreviatedName 'S.C.R.I.P.T.'var fullName 'Specialized Coder Recruitment & InternetProtection Taskforce'8.2. add default answers to promptsalert(abbreviatedName ', ' fullName)6.4. fix bugs in variable namesprompt('What is your name?', 'Anonymous')prompt('What is your age?', '21')prompt('What is your gender?', 'Male')var abbreviatedName 'S.C.R.I.P.T.'var fullName 'Specialized Coder Recruitment & InternetProtection Taskforce'8.3. store user responses with variablesvar name prompt('What is your name?', 'Anonymous')var age prompt('What is your age?', '21')var gender prompt('What is your gender?', 'Male')alert(abbreviatedName ', ' fullName)var secretCodeWord 'Firewall'alert('The ' abbreviatedName ' secret word is ' secretCodeWord)8.4. use the variable values6.5. fix variable names and ( )var name prompt('What is your name?', 'Anonymous')var age prompt('What is your age?', '21')var gender prompt('What is your gender?', 'Male')var noOfAgents 108var noOfManagers 32var noOfCleaners 20var weeklyPay (noOfAgents noOfManagers) * 78000 / 52(noOfCleaners * 500)alert('The average weekly pay at S.C.R.I.P.T is ' weeklyPay / (noOfAgents noOfManagers noOfCleaners))7. Move a robot to its goalalert('Thanks for your time ' name) 8.5. give some feedbackvarvarvarvarname prompt('What is your name?', 'Anonymous')age prompt('What is your age?', '21')gender prompt('What is your gender?', 'Male')feedback prompt('Enter some feedback please:')alert('Thanks for your time ' name)

9. Joining strings and numbers with {{ }}9.1. use to join stringsabcde 'Code Avengers''abc''abc 123''46''1234'10.5. changing variable valuesReview Quiz Questions:1. 152. 103. 54. 2011. Intro to lessons 12-209.2. use with numbers and strings11.1. review \nabcdealert('Keep it up!\n30 lessons to go.') 'Dec 2011''r2d2''2011''2000''2013'9.3. use * and / with stringsabcde '32''64''50%'' 48''32'11.2. review prompt commandsvar name prompt('What is your name?', 'Anonymous')alert('Hello, ' name ', get ready for lessons 12‐20')11.3. introduction to if statementsClick run, answer the question by typing spam, then click OK11.4. detecting cancelClick run then click cancel. Click run again then click OK9.4. practice using to join stringsabcde '1KB 1024B''75%''10GB 10240MB''450 ‐ 240 210''200KB (204800 bytes)'9.5. practice using to join stringsabcde '5678''8 days a week''abc easy as 123''99 bottles of milk on the wall''24‐7‐365'10. Review variable name rules10.1. review variable creationReview Quiz Questions:1.2.3.4.var;var x 5var e z10.2. review variable name rulesReview Quiz Questions:1.2.3.4. full namebirth month10.3. review variable name rulesReview Quiz .4. review math calculationsReview Quiz Questions:1.2.3.4.81218511.5. introduction to confirmClick run then click cancel. Click run again then click OK.12. Check user responses with [[if statements]]12.1. run an if statementClick run, type Firewall, then click OK12.2. add another if statementvar guess prompt('What is the S.C.R.I.P.T. password?')//Display a message IF the guess is correctif (guess 'Firewall')alert('Correct!')if (guess 'SpamSniper')alert('Intruder alert!')12.3. change to if–else if–elsevar guess prompt('What is the S.C.R.I.P.T. password?')//Display a message IF the guess is correctif (guess 'Firewall')alert('Correct!')else if (guess 'SpamSniper')alert('Intruder alert!')elsealert('Incorrect!')12.4. if statements with multiple statementsvar guess prompt('What is the S.C.R.I.P.T. password?')//Display a message IF the guess is correctif (guess 'Firewall') {alert('Correct!')alert('Welcome to S.C.R.I.P.T.')} else if (guess 'SpamSniper') {alert('Intruder alert!')} else {alert('Incorrect!')alert('Please try again')}

12.5. test all if statement branches14.3. check the result with an if statementvar guess prompt('What is the S.C.R.I.P.T. password?')//Display a message IF the guess is correctif (guess 'Firewall') {alert('Correct!')alert('Welcome to S.C.R.I.P.T.')} else if (guess 'Guest') {alert('Welcome to S.C.R.I.P.T.')alert('Please wait for your host')} else if (guess 'SpamSniper') {alert('Intruder alert!')} else {alert('Incorrect!')alert('Please try again')}var clickedOk confirm('Are you sure you want to leave?')if (clickedOk true) {alert('Goodbye')}14.4. testing a confirm boxvar clickedOk confirm('Are you sure you want to leave?')if (clickedOk false) {alert('Thanks for staying')}14.5. add another confirm13. true & false13.1. greater or less than abcdef truefalsetruefalsetruetruevar clickedOk confirm('Are you sure you want to leave?')if (clickedOk true) {clickedOk confirm('Do you really want to leave?')}if (clickedOk false) {alert('Thanks for staying')} else {alert('Goodbye')}13.2. using AND &&, OR abcdef truefalsefalsetruefalsetrue13.3. using NOT !abcdef falsetruefalsetruetruefalse13.4. is equal to abcdef falsetruetruetruetruefalse13.5. using and with stringsabcdef falsetruefalsetruefalsetrue14. The [[confirm]] command14.1. confirm boxconfirm('Are you sure you want to leave?')14.2. confirm box resultvar clickedOk confirm('Are you sure you want to leave?')alert(clickedOk)15. [[if statement]] practice15.1. in if statement conditionsClick run, type nothing in the prompt, then click OK. Click run again, typeMale, then click OK. Click run again, type Female, then click OK. Click runonce more, type boy, then click OK.15.2. numbers in if statement conditionsClick run, type nothing in the prompt, then click OK. Click run again, type 75,then click OK. Click run again, type 135, then click OK. Click run once more,type 75kg, then click OK15.3. testing if statement conditionsClick run, type nothing in the prompt, then click OK. Click run again, type 1.5,then click OK. Click run again, type 2.2, then click OK. Click run again, type1.85, then click OK. Click run again, type 1.85m, then click OK15.4. complex if statement conditionsRun the code 6 times and do the following:1. Put nothing in both prompts2. Type Male for the gender prompt and 7 for the time prompt3. Type Female then 164. Type Male then 155. Type Female then type 196. Type boy then 20mins15.5. complex if statement conditionsClick run, type 61 and 0, then click OK. Click run again, type 0 and 121, thenclick OK. Click run again, type 50 and 100, then click OK. Click run oncemore, type 10 and 10, then click OK16. Move 2 robots to their goal16.1. move the robots to the Xrobot.forward(4)16.2. move the robots to the Xrobot.forward(5)robot.right()robot.forward(1)