diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..ea66316ed5 100644
--- a/01 - JavaScript Drum Kit/index-START.html
+++ b/01 - JavaScript Drum Kit/index-START.html
@@ -58,7 +58,10 @@
diff --git a/01 - JavaScript Drum Kit/index.html b/01 - JavaScript Drum Kit/index.html
new file mode 100644
index 0000000000..2f2264f715
--- /dev/null
+++ b/01 - JavaScript Drum Kit/index.html
@@ -0,0 +1,102 @@
+
+
+
+
+ JS Drum Kit
+
+
+
+
+
+
+
+ A
+ clap
+
+
+ S
+ hihat
+
+
+ D
+ kick
+
+
+ F
+ openhat
+
+
+ G
+ boom
+
+
+ H
+ ride
+
+
+ J
+ snare
+
+
+ K
+ tom
+
+
+ L
+ tink
+
+
Update CSS Variables with JS
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index.html
similarity index 56%
rename from 04 - Array Cardio Day 1/index-START.html
rename to 04 - Array Cardio Day 1/index.html
index 4162bce339..1ef0f5b294 100644
--- a/04 - Array Cardio Day 1/index-START.html
+++ b/04 - Array Cardio Day 1/index.html
@@ -31,31 +31,102 @@
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'];
+ const streets = ['Boulevards of the Marshals',
+ 'Boulevard Auguste-Blanqui',
+ 'Boulevard Barbรจs',
+ 'Boulevard Beaumarchais',
+ 'Boulevard de l\'Amiral-Bruix',
+ 'Boulevard de Strasbourg',
+ 'Boulevard des Capucines',
+ 'Boulevard de la Chapelle',
+ 'Boulevard de Clichy',
+ 'Boulevard du Crime',
+ 'Boulevard Haussmann',
+ 'Boulevard de l\'Hรดpital',
+ 'Boulevard des Italiens',
+ 'Boulevard de la Madeleine',
+ 'Boulevard de Magenta',
+ 'Boulevard Montmartre',
+ 'Boulevard du Montparnasse',
+ 'Boulevard Raspail',
+ 'Boulevard Richard-Lenoir',
+ 'Boulevard de Rochechouart',
+ 'Boulevard Saint-Germain',
+ 'Boulevard Saint-Michel',
+ 'Boulevard de Sรฉbastopol',
+ 'Boulevard du Temple',
+ 'Boulevard Voltaire',
+ 'Boulevard de la Zone'];
// Array.prototype.filter()
// 1. Filter the list of inventors for those who were born in the 1500's
+ const i1500s = inventors.filter(inventor => inventor.year >= 1500 && inventor.year < 1600);
+ console.table(i1500s);
// Array.prototype.map()
// 2. Give us an array of the inventors' first and last names
+ const names = inventors.map(inventor => `${inventor.first} ${inventor.last}`);
+ console.log(names);
// Array.prototype.sort()
// 3. Sort the inventors by birthdate, oldest to youngest
+ const sorted = inventors.sort((a, b) => (a.year > b.year) ? 1 : -1);
+ console.table(sorted);
// Array.prototype.reduce()
// 4. How many years did all the inventors live?
+ const years = inventors.reduce((a, b) => a + (b.passed - b.year),0);
+ console.log(years,'cumulative years');
// 5. Sort the inventors by years lived
+ inventors.forEach(inventor => inventor.age = (inventor.passed - inventor.year));
+ const oldest = inventors.sort((a,b) => (a.age > b.age) ? -1 : 1);
+
+ console.table(oldest);
// 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
// https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
-
+ const de = streets.filter(street => street.match('de'));
+ console.log(de,'de streets', `${de.length} total`);
// 7. sort Exercise
// Sort the people alphabetically by last name
+ const alpha = people.sort(function(a,b){
+ const [aLast, aFirst] = a.split(', ');
+ const [bLast, bFirst] = a.split(', ');
+ return (aLast > bLast) ? 1 : -1;
+ });
+ console.log(alpha);
+ // sort by first name
+ const first = people.sort(function(a,b){
+ const aFirst = a.split(' ')[1];
+ const bFirst = b.split(' ')[1];
+ return (aFirst < bFirst) ? -1 : 1;
+ });
+ console.log(first);
// 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 transport = data.reduce(function(obj, item){
+ if(obj.hasOwnProperty(item)) {
+ obj[item]++
+ } else {
+ obj[item] = 1;
+ }
+ return obj;
+ }, {});
+ console.log(transport);
+
+ const altTransport = data.reduce(function(obj, item){
+ if(!obj[item]) {
+ obj[item] = 0;
+ }
+ obj[item]++;
+ return obj;
+ },{});
+ console.log(altTransport);
+