self-assment1.js

self-assessment1.js

function billTotal(subtotal) {
  //input number
  //output is number with tip and tax;
  var tip = subtotal * 0.15;
  var tax = subtotal * 0.095;
  return subtotal + tip + tax;
}
function assert(actual, testName) {
  if (!actual) {
    console.log('FAILED ' + testName);
  } else {
    console.log('passed');
  }
}
assert(billTotal(10) === (11.50 + 0.95), 'it calculates a bill total');

function range(start, end) {
  //start and end === integers;
  //return array: containing all (whole numbers) == don't have decimals
  //assume that I have number;
  var output = [];
  start = Math.ceil(start);
  if (start > end) {return 'error';}
  for (var i = start; i < end; i++) {
    output.push(i);
  }
  return output;
}
assert(JSON.stringify(range(3.3, 10)) === JSON.stringify([4, 5, 6, 7, 8, 9]), 'it creates a list of numbers from start until end');


//input of an object;
//output an object
//objective: create a function //create a new key on person.name property;

//Assume returning an altered version of the same object;

function getFullName(person) {
  //access name property;
  var name = person.name;
  var first = name.first;
  var middle = name.middle;
  var last = name.last;
  // return string of getFullName: 'first midI last'
  //first + ' ' + midI + ' ' + last;
  var fullName;
  if (middle) {
    fullName = [first, middle, last].join(' ');
  }
  if (!middle) {
    fullName = [first, last].join(' ');
  }
  return fullName;
}
var person = {
   name : {
      first : "Alyssa",
      middle: "P.",
      last: "Hacker"
   },
   age : 26
}
var person1 = {
  name: {
    first: 'Aust',
    last: 'Reut'
  },
  age: 26
}
var person2 = {
  name: {
    first: 'Austin',
    Middle: undefined,
    last: 'Reuter'
  },
  age: 26
}
assert(getFullName(person) === 'Alyssa P. Hacker', 'it created a full name string');
assert(getFullName(person1) === 'Aust Reut', 'it converted full name without middle property');
assert(getFullName(person2) === 'Austin Reuter', 'it converted full name with null middle');

//input in array of objects: Return person object with longest first + middle + last;
//to access what I want: f,m,l is under name property of person obj;
function longestName(people) {
  var longest = '';
  for (var i = 0; i < people.length; i++) {
    var person = people[i];
    var name = person.name;
    var first = name.first;
    var middle = name.middle;
    var last = name.last;
    var fullName = first + middle + last;
    if (fullName.length > longest.length) {
      longest = fullName;
      var ret = person;
    }
    return ret;
  }

    
var people = [
  {name: {first: "Alyssa", middle: "P.", last: "Hacker"}, age: 26},
  {name: {first: "Ben", last: "Bitdiddle"}, age: 34},
  {name: {first: "Eva", middle: "Lu", last: "Ator"}, age: 40},
  {name: {first: "Lem", middle: "E.", last: "Tweakit"}, age: 45},
  {name: {first: "Louis", last: "ReasonerReasonerReasonerReasoner"}, age: 21}
];
console.log(longestName(person))

//var expected = JSON.stringify(people[people.length - 1]);