SEBR0116

Functions Exercise:

1. Write a function called logIn that takes your name as a parameter and console.logs 'Hello /your name/!' when it is called

2. Take that function up a notch by creating a new variable called isLoggedIn, that logs 'Hello /your name/!' when the variable is true, or "please log in" when it is false

3. We are looking to re-sod our lawn. It has a length of 20' and a width of 30', with Sod costing $1.45/sqft. Additionally, it will cost $100 to have thew work done. Write a function that finds the area of the lawn, the price of the Sod, and what the total cost will be to get the lawn redone. If our budget is $700, will it be enough? Log either how much extra we will need, or how much we will have left over

4. Write a function that loops over the following array of SEI students and prints out their name, and how many letters their name is

const students = [
  'Alice',
  'Andy',
  'Andrew',
  'Casey',
  'Damian',
  'Emily',
  'Emilie',
  'Grant',
  'Howie',
  'Isabella',
  'Kat',
  'Kimbrad',
  'Kiu',
  'Natasha',
  'Obi',
  'Oscar'
  'Pedro',
  'Sarah',
  'Scott',
  'Tiffany',
  'Umberto',
  'Wade',
  'Zhe'
]

It should give us "Alice is 5 letters long"... and so on

If you want to take it a bit further, add an additional condtional in that wll only return and log the names that are 5 or more letters long.

Then, to take it one step further, set another conditional that makes it so only names that are 5 or more letters long and start with a vowel are logged.

Higher Order Functions

const nums = [1, 3, 6, 9, 11, 15, 21, 25, 28, 30, 32, 34, 36, 40, 44, 45]

1. const getSquares = (nums) => { /**

   • Use .map to return an array of all nums multiplied by 2 */ }

2. const isDivBy3 = (nums) => { /**

   • Use .map to return an array of booleans, if the number is divisible by 3 return true otherwise false
   • • The modulus % operator may be useful * */ }

3. const filterOdds = (nums) => { /**

   • Use .filter to return an array of all odd numbers
   • • The modulus % operator may be useful * */ }

4. const filterEvens = (nums) => { /**

   • Use .filter to return all even numbers
   • • The modulus % operator may be useful * */ }

5. const filterDivBy4 = (nums) => { /**

   • Use .filter to return all numbers that are divisible by 4
   • • The modulus % operator may be useful * */ }

6. const addAllUp = (nums) => { /**

   • Use .reduce to return the total sum of all numbers */ }

7. const multiplyAllNums = (nums) => { /**

   • Use .reduce to return the total product of all numbers */ }

// BONUS const sumSquareAllNums = (nums) => { /**

• Use .reduce to return the total sum of each number to the second power
• @param {[Number]} arr will contain numbers from 1-15
• Your final result should be 1240 / } const addAllAges = (nums) => { /*
• Use .reduce to return the total sum of all ages in the provided arr
• The arr parameter contains: { name: 'Carl', age: 30 }, { name: 'Cara', age: 10 }, { name: 'Carmen', age: 15 } ] Your final result should be 55 */ }