task-object.js

// Checkout useful functions at: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object
// Checkout useful functions at: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array

// 1 ----
// Create a function that takes an object argument sizes (contains width, length, height keys) and returns the volume of the box.
// Examples
// volumeOfBox({ width: 2, length: 5, height: 1 }) ➞ 10
// volumeOfBox({ width: 4, length: 2, height: 2 }) ➞ 16
// volumeOfBox({ width: 2, length: 3, height: 5 }) ➞ 30

// Your code:
const volumeOfBox = (obj) => {
    let total_volume = obj.width * obj.length * obj.height;
    console.log(total_volume);
};

console.log("volumeOfBox");
volumeOfBox({width : 2, length : 5, height : 1});
  
// 2 ----
// Create a function that takes strings - firstname, lastname, age, and return object with firstname, lastname, age, yearOfBirth
// Examples
// personObject("Obi-wan", "Kenobi", "40") ➞ { firstname: "Obi-wan", lastname: "Kenobi", age: 40, yearOfBirth: 1981 }

// Your code:
const personObject = (firstname, lastname, age) => {
    const new_obj = {firstname : "", lastname : "", age : 0, yearOfBirth : 2021};
    new_obj.firstname = firstname;
    new_obj.lastname = lastname;
    new_obj.age = age;
    new_obj.yearOfBirth -= age;
    console.log(new_obj);
};

console.log("personObject");
personObject("Obi-wan", "Kenobi", "40");

// 3 ----
// Create the function that takes an array with objects and returns the sum of people's budgets.
// Example
// getBudgets([
//   { name: "John", age: 21, budget: 23000 },
//   { name: "Steve",  age: 32, budget: 40000 },
//   { name: "Martin",  age: 16, budget: 2700 }
// ]) ➞ 65700

//Your code:
const getBudgets = (persons) => {
    let sum = 0;
    for(let i = 0; i < persons.length; i++)
    {
        sum += persons[i].budget;
    }
    console.log(sum);
};

console.log("getBudgets");
getBudgets([
       { name: "John", age: 21, budget: 23000 },
       { name: "Steve",  age: 32, budget: 40000 },
       { name: "Martin",  age: 16, budget: 2700 }
    ]);

// 4 ----
// Create function that takes array of cars and sort them by price
// Example
// const vehicles = [{name: "Executor Star Dreadnought", price: 999}, {name: "T-47 Airspeeder", price: 5}, {name: "AT-AT", price : 20}]
// sortVehiclesByPrice(vehicles) ➞ [{name: "T-47 Airspeeder", price :5}, {name: "AT-AT", price :20}, {name: "Executor Star Dreadnought", price: 999}]

// Your code:
const sortVehiclesByPrice = (vehicles) => {
    let tmp;
    for(let i = 0; i < vehicles.length; i++) 
    {
      for(let j = 0; j < vehicles.length - 1; j++)
      {
        if(vehicles[j].price > vehicles[j+1].price) 
        {
            tmp = vehicles[j];
            vehicles[j] = vehicles[j + 1];
            vehicles[j + 1] = tmp;
        }
      }
    }
    
    console.log(vehicles);
  };

console.log("sortVehiclesByPrice");
const vehicles = [{name: "Executor Star Dreadnought", price: 999}, {name: "T-47 Airspeeder", price: 5}, {name: "AT-AT", price : 20}]
//const vehicles = [{name: "Executor Star Dreadnought", price: 5}, {name: "T-47 Airspeeder", price: 999}, {name: "AT-AT", price : 20}, {name: "TEST", price: 15}]
sortVehiclesByPrice(vehicles);