three javascript assignment finishing by vision studio code

/in /by

<!DOCTYPE html>

<html>

<body>

<script>

//

// Write a function that calculates the amount of money a person would earn over

// a period of years if his or her salary is one penny the first day, two pennies

// the second day, and continues to double each day. The program should ask the

// user for the number of years and call the function which will return the total

// money earned in dollars and cents, not pennies. Assume there are 365 days

// in a year.

//

function totalEarned(years) {

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// Insert your code between here and the next comment block. Do not alter //

// any code in any other part of this file. //

/////////////////////////////////////////////////////////////////////////////////

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// Insert your code between here and the previous comment block. Do not alter //

// any code in any other part of this file. //

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}

var years = parseInt(prompt(‘How many years will you work for pennies a day? ‘));

var totalDollarsEarned = totalEarned(years);

alert(‘Over a total of ‘ + years + ‘, you will have earned $’ + totalDollarsEarned);

</script>

</body>

</html>

<!DOCTYPE html>

<html>

<body>

<script>

//

// Assuming the ocean’s level is currently rising at about 1.6 millimeters per

// year. Write a function that is passed a number of years and then uses a loop

// that calls the alert() function to display the total rise in ocean level for each.

//

// For example, if looking at the ocean level rise over 5 years the program would

// display the following five alert with the values (don’t worry about rounding and

// formatting the output to look nice):

//

// Year 1 – 1.6 millimeters

// Year 2 – 3.2 millimeters

// Year 3 – 4.8 millimeters

// Year 4 – 6.4 millimeters

// Year 5 – 8.0 millimeters

//

// When the loop ends the function will return the number of millimeters the ocean

// has risen during this period. In this exampe,

//

function oceanRise(numberOfYears) {

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// Insert your code between here and the next comment block. Do not alter //

// any code in any other part of this file. //

/////////////////////////////////////////////////////////////////////////////////

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// Insert your code between here and the previous comment block. Do not alter //

// any code in any other part of this file. //

/////////////////////////////////////////////////////////////////////////////////

}

var numberOfYears = prompt(‘Over how many years would you like to display the rising in ocean levels? ‘);

alert(‘In the next ‘ + numberOfYears + ‘ years, the ocean will have risen ‘ + oceanRise(numberOfYears) + ‘ millimeters’);

</script>

</body>

</html>

<!DOCTYPE html>

<html>

<body>

<script>

//

// The following program will prompt the user for a starting number and an

// ending number. Assume that these are whole numbers (no decimal points),

// assume the numbers are not negative and assume that the first number is

// not larger than the second number.

//

// write a funcTion that returns the sum of the numbers from the starting

// number to the ending number. For example, if the starting number is 13

// and the ending number is 18 then the function will return the value of

// 13 + 14 + 15 + 16 + 17 + 18. If the starting number is equal to the ending

// number then simply return that number.

//

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function sumOfNumbers(startingNumber, endingNumber) {

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// Insert your code between here and the next comment block. Do not alter //

// any code in any other part of this file. //

/////////////////////////////////////////////////////////////////////////////////

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// Insert your code between here and the previous comment block. Do not alter //

// any code in any other part of this file. //

/////////////////////////////////////////////////////////////////////////////////

}

var startingNumber = parseInt(prompt(‘What is the starting number? ‘));

var endingNumber = parseInt(prompt(‘What is the ending number? ‘));

var sumOfNumbersPassed = sumOfNumbers(startingNumber, endingNumber);

alert(‘The sum of the numbers from ‘ + startingNumber + ‘ to ‘ + endingNumber + ‘ is ‘ + sumOfNumbersPassed);

</script>

</body>

</html>