codeup-web-exercises/es6_Bonus.html at master · gloriaLVela/codeup-web-exercises · GitHub

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<!DOCTYPE html>
<html lang="en">
<head>

    <meta charset="utf-8">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <link rel="shortcut icon" href="data:image/x-icon;," type="image/x-icon">

    <title>Map Filter Reduce</title>

</head>
<body>

<main class="container">

    <h1>Map, Filter, Reduce Practice Problems</h1>

</main>

<!-- Custom JS -->
<script>

    {
        "use strict";

        const fruits = ["cantaloupe", "orange", "date", "elderberry", "ugli fruit", "pineapple"];

        const customers = [
            {
                name: "Fred",
                age: 58,
                occupation: "Police Officer",
                noOfPurchases: 4
            },
            {
                name: "Samantha",
                age: 54,
                occupation: "Teacher",
                noOfPurchases: 18
            },
            {
                name: "Charles",
                age: 38,
                occupation: "Librarian",
                noOfPurchases: 9
            }
        ];

        const pets = [
            {
                name: 'Bud',
                age: 2,
                breed: 'Pug'
            },
            {
                name: 'Gabby',
                age: 10,
                breed: 'Retriever'
            },
            {
                name: 'Fred',
                age: 1,
                breed: 'Lab'
            },
            {
                name: 'Bowser',
                age: 2,
                breed: 'Pug'
            }
        ];

        const family = [
            {
                name: "Pam",
                gender: "female",
                age: 29,
            },
            {
                name: "Amelie",
                gender: "female",
                age: 10,
            },
            {
                name: "Justin",
                gender: "male",
                age: 32,
            },
        ];

        // PROBLEM 1 - create an array of the first letters of each fruit

        let firstLetter = fruits.map(fruit => fruit.charAt(0));
        console.log(firstLetter);

        // PROBLEM 2 - create array of user objects based on the customers array
        // of objects (each user object should just have name and age properties)

        let newCustomerList = customers.map(person => {
            const {name, age} = person;
            return {name, age};
        }, {});

        console.log(newCustomerList);

        // PROBLEM 3 - create an array of civil servant customers (teachers and police officers)
        // containing the same properties as the objects on the customers objects
        let civilServantList = customers.filter(customer => (customer.occupation === "Teacher" || customer.occupation == "Police Officer"))
            .map(person => {
                const {name, age} = person;
                return {name, age};
            }, {});

        console.log(civilServantList);

        // PROBLEM 4 - determine the average age of customers

        const averageAge = customers.reduce((totalAge, customer) => totalAge += customer.age, 0);
        console.log(averageAge / customers.length);

        // PROBLEM 5 - create a function makeSuperPet() that takes in the pets array as input and returns a single pet object
        // with the following shape...
        /*

            {
                name: ALL_PET_NAMES_CONCATENATED_INTO_A_SINGLE_STRING,
                age: THE_TOTAL_OF_ALL_PET_AGES,
                breed: THE_FIRST_LETTERS_OF_ALL_PET_BREEDS_CONCATENATATED_INTO_A_SINGLE_STRING
            }

         */

        /**
         *
         *
         *
         let salesReport = salesPeople.reduce((finalString, person) => finalString + `${person.name} has sold ${person.units} units this quarter! `, "");
         console.log(salesReport);
         */

        function makeSuperPet(pets) {
            return {
                name: pets.reduce((finalName, pet) => finalName + pet.name, ""),
                age: pets.reduce((totalAge, pet) => totalAge + pet.age, 0),
                breed: pets.reduce((newBreed, pet) => newBreed + pet.breed.charAt(0), "")
            }
        }

        console.log(makeSuperPet(pets));

        // PROBLEM 6 - take in an array of pets and return an array of the length of first names for pugs only
        // your output for the given input should be [3, 6] for 'Bud' and 'Bowser'
        const newPetArray = pets.filter(pet => pet.breed === "Pug");
        console.log(newPetArray);


        // PROBLEM 7 - create a function getFemaleFamilyMembers() that when given the family variable as an argument,
        // returns an array of female family member names

        function getFemaleFamilyMembers(family) {
            return family.filter(familyMember => (familyMember.gender === "female")).map(person => person.name);


        };

        console.log(getFemaleFamilyMembers(family));


        // PROBLEM 8 - create a function makeLongPetString() that when given the variable of pets,
        // returns a string of all property values with dashes separating each property value

        function makeLongPetString(pets) {
            return pets.map(pet => `${pet.name} - ${pet.age} - ${pet.breed}`);
        }

        console.log(makeLongPetString(pets));

        // PROBLEM 9 - create a function that when given an array of first names, returns an array of the same names with a last name of Smith

        // input = ['Sally', 'Fred', 'Steve']
        // output = ['Sally Smith', 'Fred Smith', 'Steve']

        function addLastName(input) {
            return input.map(name => `${name} Smith`);
        }

        console.log(addLastName(['Sally', 'Fred', 'Steve']));

        // PROBLEM 10 - create a function that when given an array of numbers, returns the sum of even numbers

        function addEven(numbers){
            return numbers.reduce((total, number) => {
              if  (number % 2 === 0){
                 total += number;
              }
              return total;
            }, 0);
        }

        console.log(addEven([1, 6, 10, 30, 40, 45]));

        // PROBLEM 11 - create a function that when given an array of numbers, returns the sum of all numbers evenly divisible by 10

        function addDivisible10(numbers){
            return numbers.reduce((total, number) => {
                if  (number % 10 === 0){
                    total += number;
                }
                return total;
            }, 0);
        }

        console.log(addDivisible10([1, 6, 10, 30, 40, 45]));

        // PROBLEM 12 - create a function that when given an array of names, returns a string of all the first letters of each name

        function firstLetterName(names){
            return names.reduce((newString, names) => {
                return newString += names.charAt(0)
            }, "");
        }

        console.log(firstLetterName(["Mary", "John", "Peter", "Gabriel", "Camilo", "Rufino"]));

        // PROBLEM 13 - create a function that when given an array of values, returns an array of only the truthy values

        function truthyValues(values) {
            return values.reduce((returnArray, value) => {
                if (Boolean(value)){
                    returnArray.push(value);
                }
                return returnArray;
            }, []);
        }

        console.log(truthyValues([0,false,true,1,"hello"]));

        //     = users.reduce((listOfLangs, user) => {
        //         for (const lang of user.languages) {
        //             if (listOfLangs.indexOf(lang) === -1) {
        //                 listOfLangs.push(lang);
        //             }
        //         }
        //
        //         return listOfLangs;
        //     }, []);
        // }

        // PROBLEM 14 - create a function that when given an object, returns the property values as an array of elements
        function objectValues(inputObject){
            return Object.values(inputObject);
        }

        console.log(objectValues({
            name: "Amelie",
            gender: "female",
            age: 10,
        }));


        // PROBLEM 15 - create a function that when given an object, returns the property values as an array of elements

        // PROBLEM 16 - create a function that when given three arguments: a min num, a max num, an array
        // of nums will return the array of nums that are only between the min and max values, inclusive

        function valuesBetween(min, max, inputArray){
            return inputArray.filter(currentNumber => currentNumber > min && currentNumber < max);
            // return family.filter(familyMember => (familyMember.gender === "female")).map(person => person.name);
        }

        console.log(valuesBetween(5, 50, [0, 1, 2, 3, 4, 5, 10, 15, 20, 45, 50, 55]));

        // PROBLEM 17 - create a function that when given an array of strings, returns an array of objects
        // with properties for the given string value and the length of the string and the string without vowels (not including y)

        function createObject(propertyValues){

            let newObjectString = "{ ";
            for (let index = 0;  index < propertyValues.length; index++){
                if (index < propertyValues.length - 1){
                    newObjectString += "property"+index + ": " + propertyValues[index] + ",";
                }
                else {
                    newObjectString += "property"+index + ": " + propertyValues[index];
                }


            }
            newObjectString += "} ";
            return newObjectString;
        }

        console.log(createObject(["one", "two", "three"]));

    }

</script>

</body>
</html>