Since this is mostly an exercise in functional use of Arrays, I've gone ahead and included the script that I built while working through this below.

This Page's JS Code

Javascript
            
                    // Get your shorts on - this is an array workout!
                    // ## Array Cardio Day 1
            
                    // Some data we can work with
            
                    const inventors = [{
                        first: 'Albert',
                        last: 'Einstein',
                        year: 1879,
                        passed: 1955
                    }, {
                        first: 'Isaac',
                        last: 'Newton',
                        year: 1643,
                        passed: 1727
                    }, {
                        first: 'Galileo',
                        last: 'Galilei',
                        year: 1564,
                        passed: 1642
                    }, {
                        first: 'Marie',
                        last: 'Curie',
                        year: 1867,
                        passed: 1934
                    }, {
                        first: 'Johannes',
                        last: 'Kepler',
                        year: 1571,
                        passed: 1630
                    }, {
                        first: 'Nicolaus',
                        last: 'Copernicus',
                        year: 1473,
                        passed: 1543
                    }, {
                        first: 'Max',
                        last: 'Planck',
                        year: 1858,
                        passed: 1947
                    }, {
                        first: 'Katherine',
                        last: 'Blodgett',
                        year: 1898,
                        passed: 1979
                    }, {
                        first: 'Ada',
                        last: 'Lovelace',
                        year: 1815,
                        passed: 1852
                    }, {
                        first: 'Sarah E.',
                        last: 'Goode',
                        year: 1855,
                        passed: 1905
                    }, {
                        first: 'Lise',
                        last: 'Meitner',
                        year: 1878,
                        passed: 1968
                    }, {
                        first: 'Hanna',
                        last: 'Hammarström',
                        year: 1829,
                        passed: 1909
                    }];
            
                    const people = ['Beck, Glenn', 'Becker, Carl', 'Beckett, Samuel', 'Beddoes, Mick', 'Beecher, Henry',
                        'Beethoven, Ludwig', 'Begin, Menachem', 'Belloc, Hilaire', 'Bellow, Saul', 'Benchley, Robert',
                        'Benenson, Peter', 'Ben-Gurion, David', 'Benjamin, Walter', 'Benn, Tony', 'Bennington, Chester',
                        'Benson, Leana', 'Bent, Silas', 'Bentsen, Lloyd', 'Berger, Ric', 'Bergman, Ingmar', 'Berio, Luciano',
                        'Berle, Milton', 'Berlin, Irving', 'Berne, Eric', 'Bernhard, Sandra', 'Berra, Yogi', 'Berry, Halle',
                        'Berry, Wendell', 'Bethea, Erin', 'Bevan, Aneurin', 'Bevel, Ken', 'Biden, Joseph', 'Bierce, Ambrose',
                        'Biko, Steve', 'Billings, Josh', 'Biondo, Frank', 'Birrell, Augustine', 'Black, Elk', 'Blair, Robert',
                        'Blair, Tony', 'Blake, William'
                    ];
            
                    // Array.prototype.filter()
                    // 1. Filter the list of inventors for those who were born in the 1500's
            
                    const fifteen = inventors.filter(inventor =>
                        (inventor.year >= 1500 && inventor.year < 1600)
                    )
            
                    console.table(fifteen);
            
                    // Array.prototype.map()
                    // 2. Give us an array of the inventors' first and last names
            
                    const fullNames = inventors.map(inventor => ` ${inventor.first} ${inventor.last}`);
            
                    console.log(fullNames);
            
                    // Array.prototype.sort()
                    // 3. Sort the inventors by birthdate, oldest to youngest
            
                    //const ordered = inventors.sort(function (firstPerson, secondPerson) {
                    //    if (firstPerson.year > secondPerson.year) {
                    //        return 1;
                    //    } else {
                    //        return -1;
                    //    }
                    //})
            
            
                    const ordered = inventors.sort((a, b) => a.year > b.year ? 1 : -1);
            
                    console.table(ordered);
            
                    // Array.prototype.reduce()
                    // 4. How many years did all the inventors live?
            
                    const totalYears = inventors.reduce((total, inventor) => {
                        return total + (inventor.passed - inventor.year);
                    }, 0);
            
                    console.log(totalYears);
            
                    // 5. Sort the inventors by years lived
            
                    const oldest = inventors.sort(function(a, b) {
                        const lastGuy = a.passed - a.year;
                        const nextGuy = b.passed - b.year;
                        return lastGuy > nextGuy ? -1 : 1;
                    });
            
                    console.table(oldest);
            
                    // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
                    // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
            
                    //const category = document.querySelector('.mw-category');
                    //const links = Array.from(category.querySelectorAll('a'));
            
                    //const de = links
                    //    .map(link => link.textContent)
                    //    .filter(streetName => streetName.includes('de'));
            
            
                    // 7. sort Exercise
                    // Sort the people alphabetically by last name
            
                    const alpha = people.sort((lastOne, nextOne) => {
                        const [alast, afirst] = lastOne.split(', ');
                        const [blast, bfirst] = nextOne.split(', ');
                        return alast > blast ? 1 : -1;
                    });
            
                    console.table(alpha);
            
                    // 8. Reduce Exercise
                    // Sum up the instances of each of these
                    const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car',
                        'truck'
                    ];
            
                    const transportation = data.reduce(function(obj, item) {
                        if (!obj[item]) {
                            obj[item] = 0;
                        }
                        obj[item]++;
                        return obj;
                    }, {});
            
                    console.log(transportation);