To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

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Answer 1

Question

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

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Find the error: daily_sales = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] days_of_week = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] for i in range(7): daily_sales[i] = float(input('Enter the sales for ' \ + day_of_week[i] + ': ')

Find the error: daily_sales = [0.0, 0,0, 0.0, 0.0, 0.0, 0.0, 0.0] days_of_week = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] for i in range(7): daily_sales[i] = float(input('Enter the sales for ' \ + days_of_week[i] + ': ')

Find the error: daily_sales = [0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0] days_of_week = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'] for i in range(6): daily_sales[i] = float(input('Enter the sales for ' \ + days_of_week[i] + ': '))

Answer 2

Question

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

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Answer 3

Question

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

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Answer 4

Question

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

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Answer 5

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

Answer 6

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

Answer 7

Chapter 11, Problem 5CP2

a)

Program Plan Intro

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

Answer 8

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

Answer 9

b)

Program Plan Intro

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

Answer 10

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

Answer 11

c)

Program Plan Intro

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

Answer 12

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

Answer 13

d)

Program Plan Intro

To create a switch-case structure for the variable named buttonValuein the mt_calc.js file

To delete the content of the variable named calcValueand set its value to the empty text string for the"del"value of the variable named buttonValue.

To erase thelast character of the variable named calcValueusing the eraseChar () function for the"bksp"value of the variable named buttonValue.

To change the content of the variable named calcValueto" = " + evalEq(calcValue, calcDecimal) + "\n";to calculate the value of the current expression for the"enter"value of the variable named buttonValue.

To copy thelast equation using the lastEq ()function usingvalue of the variable named calcValueas parameter for the"prev"value of the variable named buttonValue.

Otherwise, append the calcValue + buttonValuevalue to the variable named calcValue.

Answer 14

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

Answer 15

e)

Program Plan Intro

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

Answer 16

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

Answer 17

f)

Program Plan Intro

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

Answer 18

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Answer 19

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Answer 20

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Answer 21

Ch. 11.1 - Prob. 1QC Ch. 11.1 - Prob. 2QC Ch. 11.3 - Provide the general code to create a function...Ch. 11.3 - Prob. 2QC Ch. 11 - Prob. 1RA Ch. 11 - Prob. 2RA Ch. 11 - Prob. 3RA Ch. 11 - Prob. 4RA Ch. 11 - Prob. 5RA Ch. 11 - Prob. 6RA

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

Solution Summary: The author explains how to create a function called buttonClick to change the appearance of the calculator window when the user clicks the button.

Concept explainers

To create a function named buttonClick ()to change the appearance of the calculator window when the user clicks the calculator button. Create a variable named calcValueand initialize it withthe value of the window text area box in the mt_calc.jsfile.

To create a variable named calcDecimaland initialize it with the value of the decimal input box in the mt_calc.jsfile.

To create anattribute variable named buttonValueand initialize it with the value of the event object target in the mt_calc.jsfile.

To set the value of the text area box of the calcWindowto the value of the variable named calcValuein the mt_calc.js file

To put the cursor focus within the calculator window by running the command document.getElementById("calcWindow").focus();in the mt_calc.js file

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Chapter 11 Solutions