db89fa52926e4e96bef45e44cb9e86be
javascript1
lab3
v2
rasb14
2018-11-26 18:05:12
v3.1.3 (2018-09-13)

Generated 2018-11-26 19:05:12 by dbwebb lab-utility v3.1.3 (2018-09-13).

Lab 3 - functions

Practice to write functions.

1. Basic functions

Practice on basic functions.

Exercise 1.1 (1 points)

Create a function sumRangeNumbers() that returns the sum of all numbers between two chosen numbers. The function should take two arguments, one representing the lowest boundary and one that represents the highest boundary. For example, the arguments 10 and 20 should return the sum of 10+11+12+13…+20.

Test it using the values 35 and 81, answer with the result.

Exercise 1.2 (1 points)

Create a function called fruitColor() that takes one argument called fruit and returns the color of the fruit.

The function should be aware of the following fruits (banana, apple, kiwi, plum) with respective color (yellow, green, green, red).

Try it out using the fruit banana and answer with the result.

Exercise 1.3 (1 points)

Create a function printRange() that takes two arguments rangeStart and rangeStop and returns a string with all numbers comma-separated in the range.

Try it using the arguments 26 and 45.

Answer with the result.

Exercise 1.4 (1 points)

Create a function printRangeReversed() that takes two arguments rangeStart and rangeStop and returns a string with all numbers comma-separated in the range.

Try it using the arguments 45 and 26.

Answer with the result.

Exercise 1.5 (1 points)

Create a function printAnyRange() that takes two arguments rangeStart and rangeStop and returns a string with all numbers comma-separated in the range.

If rangeStart is smaller than rangeStop then call the function printRange().

If rangeStart is greater than rangeStop the call the function printRangeReversed().

Try it using the arguments 26 and 45 (both ways).

Answer with the result using arguments 26 and 45.

Exercise 1.6 (1 points)

Create a function called stringRepeat() that returns a string a specific number of times. The function should take two arguments, one string and one number: grey and 12. The number represents the number of times the string should be added to a string.

Test the function and answer with the result.

Exercise 1.7 (1 points)

Create a function inRange() that takes three arguments, rangeStart, rangeStop and value.

The function should return boolean true if value is greater than rangeStart and less than rangeStop. Otherwise it should return boolean false.

Try it out using the range 107 - 592 and the value 414.

Answer with the result.

Exercise 1.8 (1 points)

Try out the function inRange() using the range 107 - 592 and the value 691.

Answer with the result.

Exercise 1.9 (1 points)

Create a function called degreesToRadians() that should take one argument, a degree value. The function should convert the value to radians and return the result with max 4 decimals.

Test your function with the value 143 and answer with the result.

Exercise 1.10 (1 points)

Create a function called fizzBuzz() that takes two arguments start and stop and returns a comma-separated string.

The arguments represents the starting point and stop point of the game Fizz Buzz (http://en.wikipedia.org/wiki/Fizz_buzz). The function should run from start to stop and add Fizz, Buzz or both to your result-variable at appropriate numbers.

Each entry to your result should be comma-separated. If stop is equal or lower than start, the function should return an appropriate error message.

Test the function using start=5 and stop=30.

2. Extra assignments

These questions are worth 3 points each. Solve them for extra points. In this section, you could re-use your code from lab 1 in exercise 2.1 and 2.2.

Exercise 2.1 (3 points)

Create a function called printSum() that should take two variables, the sum of the players hand and the sum of the dealers hand.

Your hand should be three cards with the values: 3, 2 and 2.
The dealers hand should be three card with the values: 3, 5, 9.
The function should return the sum and the player: Player: 7, Dealer: 17.

Test your function with the given values and answer with the result.

Exercise 2.2 (3 points)

Create a function called printResult() that should take two variables, the sum of the players hand and the sum of the dealers hand.

Players hand should be three cards with the values: 3, 2 and 2. The dealers hand should be three card with the values: 3, 5, 9.

This time you should include the check from lab 2 where you find out the boundaries of the player and the dealer.
Player hand = 21 (black jack).
Player hand less than 21 (safe).
Player hand larger than 21 (busted).
Dealer hand less than 17 (safe).
Dealer hand larger or equal to 17 and less than 21 (stop).
Dealer hand = 21 (black jack).
Delaer hand larger than 21 (busted).

Return a string in the format: Player: safe, Dealer: busted.

Test your function with the given values and answer with the result.

Exercise 2.3 (3 points)

Create a function called calculateInterest() that returns the money you have after x years of interest, given three arguments: 520, 22 and 4. First argument represents the start money, the second argument represents the number of years your money produces interest. The third argument is the interest rate in percent (%).

Test your function and answer with the result with a maximum of 4 decimals.