diff --git a/.vscode/settings.json b/.vscode/settings.json
new file mode 100644
index 0000000000..156040a822
--- /dev/null
+++ b/.vscode/settings.json
@@ -0,0 +1,4 @@
+// Place your settings in this file to overwrite default and user settings.
+{
+    "workbench.editor.showTabs": true
+}
\ No newline at end of file
diff --git a/01 - JavaScript Drum Kit/drumkit.js b/01 - JavaScript Drum Kit/drumkit.js
new file mode 100644
index 0000000000..5dd22c9c59
--- /dev/null
+++ b/01 - JavaScript Drum Kit/drumkit.js	
@@ -0,0 +1,39 @@
+// Add playSounn to every keydown event.
+window.addEventListener('keydown', playSound);
+
+// For each key, add an event listener to remove playing
+// CSS class.
+const keys = document.querySelectorAll('.key');
+keys.forEach(key => key.addEventListener('transitionend', removePlayingCss));
+
+function playSound(e) {
+    // Get key code from the event.
+    const keyCode = e.keyCode;
+
+    // Select elements that corresponds to the key code.
+    const audio = document.querySelector(`audio[data-key="${keyCode}"]`);
+    const key = document.querySelector(`.key[data-key="${keyCode}"]`);
+
+    // Stop execution if there's no matching element.
+    if (!audio) {
+        return;
+    }
+
+    // Rewind to start and play (such that you can hit it repeatedly).
+    audio.currentTime = 0;
+    audio.play();
+
+    // Add playing CSS class to key element.
+    key.classList.add('playing');
+}
+
+function removePlayingCss(e) {
+    // Target a single transition event (transform) and
+    // remove class when we get it.
+    if (e.propertyName !== 'transform') {
+        return;
+    } else {
+        // this is equal to the element the event is on (i.e. the key).
+        this.classList.remove('playing');
+    }
+}
\ No newline at end of file
diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..10251b12b5 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -57,10 +57,7 @@
   <audio data-key="75" src="sounds/tom.wav"></audio>
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
-<script>
-
-</script>
-
+<script type="text/javascript" src="drumkit.js" ></script>
 
 </body>
 </html>
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
index 259280d228..f7a3dd3b84 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,13 +61,14 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform:rotate(90deg);
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0, 1.74, 1, 1);
     }
 
   </style>
 
-  <script>
-
-
-  </script>
+  <script src="javascript.js"></script>
 </body>
 </html>
diff --git a/02 - JS + CSS Clock/javascript.js b/02 - JS + CSS Clock/javascript.js
new file mode 100644
index 0000000000..c826beb881
--- /dev/null
+++ b/02 - JS + CSS Clock/javascript.js	
@@ -0,0 +1,24 @@
+const secondHand = document.querySelector('.second-hand');
+const minuteHand = document.querySelector('.min-hand');
+const hourHand = document.querySelector('.hour-hand');
+
+function setDate() {
+    const now = new Date();
+
+    // Set seconds.
+    const seconds = now.getSeconds();
+    const secondsDegrees = ((seconds / 60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+
+    // Set minutes.
+    const minutes = now.getMinutes();
+    const minutesDegrees = ((minutes / 60) * 360) + 90;
+    minuteHand.style.transform = `rotate(${minutesDegrees}deg)`;
+
+    // Set hours.
+    const hours = now.getHours();
+    const hoursDegrees = ((hours / 12) * 360) + 90;
+    hourHand.style.transform = `rotate(${hoursDegrees}deg)`;
+}
+
+setInterval(setDate, 1000);
\ No newline at end of file
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index bf0f33e3ba..b5cb4d44c5 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -21,6 +21,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+    :root {
+      --base: #ffc500;
+      --spacing: 10px;
+      --blur: 10px;
+    }
+
+    img {
+      padding: var(--spacing);
+      background: var(--base);
+      filter: blur(var(--blur));
+    }
+
+    .hl {
+      color: var(--base);
+    }
 
     /*
       misc styles, nothing to do with CSS variables
@@ -52,8 +67,7 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
     }
   </style>
 
-  <script>
-  </script>
+  <script src="javascript.js"></script>
 
 </body>
 </html>
diff --git a/03 - CSS Variables/javascript.js b/03 - CSS Variables/javascript.js
new file mode 100644
index 0000000000..5dac55dc0b
--- /dev/null
+++ b/03 - CSS Variables/javascript.js	
@@ -0,0 +1,12 @@
+const inputs = document.querySelectorAll('.controls input');
+
+function handleUpdate() {
+    const input = this.name;
+    const value = this.value;
+    const suffix = input === 'base' ? '' : 'px';
+
+    document.documentElement.style.setProperty(`--${input}`, value + suffix);
+}
+
+inputs.forEach(input => input.addEventListener('change', handleUpdate));
+inputs.forEach(input => input.addEventListener('mousemove', handleUpdate));
\ No newline at end of file
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 089352c8a6..519f14c222 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -27,17 +27,42 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const foo = inventors.filter(function(inventor) {
+      return inventor.year >= 1500 && inventor.year < 1600;
+    })
+    console.log(foo);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventory first and last names
+    const bar = inventors.map((inventor) => {
+      return `${inventor.first} ${inventor.last}`;
+    })
+    console.log(bar);
 
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
+    inventors.sort((a, b) => {
+      return a.year - b.year;
+    });
+    console.log(inventors);
 
     // Array.prototype.reduce()
     // 4. How many years did all the inventors live?
+    const years = inventors.reduce((total, current) => {
+      return total + (current.passed - current.year);
+    }, 0);
+    console.log(years);
 
     // 5. Sort the inventors by years lived
+    const baz = inventors.map(inventor => {
+      return {
+        name: `${inventor.first} ${inventor.last}`,
+        age: inventor.passed - inventor.year
+      };
+    }).sort((a, b) => {
+      return b.age - a.age;
+    });
+    console.log(baz);
 
     // 6. create a list of Boulevards in Paris that contain 'de' anywhere in the name
     // https://en.wikipedia.org/wiki/Category:Boulevards_in_Paris
@@ -45,10 +70,28 @@
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const alpha = people.sort((a, b) => {
+      let aName = a.split(', ')[0].toLowerCase();
+      let bName = b.split(', ')[0].toLowerCase();
+      return aName > bName ? 1 : -1;
+    });
+    console.log(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 initialTotals = {
+      'car': 0,
+      'truck': 0,
+      'bike': 0,
+      'van': 0,
+      'walk': 0
+    };
+    const totals = data.reduce((_totals, current) => {
+      _totals[current]++;
+      return _totals;
+    }, initialTotals);
+    console.log(totals);
 
   </script>
 </body>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index e1d643ad5c..d0c8e851e8 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,8 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
+      flex-direction: row;
     }
 
     .panel {
@@ -41,6 +43,11 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      justify-content: center;
+      align-items: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,8 +61,18 @@
       margin:0;
       width: 100%;
       transition:transform 0.5s;
+      flex: 1 0 auto;
+      display: flex;
+      justify-content: center;
+      align-items: center;
     }
 
+    .panel > *:first-child { transform: translateY(-100%); }
+    .panel.open-active > *:first-child { transform: translateY(0); }
+
+    .panel > *:last-child { transform: translateY(100%); }
+    .panel.panel.open-active > *:last-child { transform: translateY(0); }
+
     .panel p {
       text-transform: uppercase;
       font-family: 'Amatic SC', cursive;
@@ -68,6 +85,7 @@
 
     .panel.open {
       font-size:40px;
+      flex: 5;
     }
 
     .cta {
@@ -107,7 +125,22 @@
   </div>
 
   <script>
+    const panels = document.querySelectorAll('.panel');
+
+    function toggleOpen() {
+      this.classList.toggle('open');
+    }
+
+    function toggleActive(e) {
+      if (e.propertyName.includes('flex')) {
+        this.classList.toggle('open-active');
+      }
+    }
 
+    panels.forEach((panel) => {
+      panel.addEventListener('click', toggleOpen);
+      panel.addEventListener('transitionend', toggleActive);
+    });
   </script>
 
 
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..ea39a0b4a5 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -15,7 +15,45 @@
     </ul>
   </form>
 <script>
-const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+  const cities = [];
+
+  fetch(endpoint)
+    .then((blob) => blob.json())
+    .then((data) => {
+      cities.push(...data);
+    });
+
+  function findMatches(query, cities) {
+    return cities.filter((place) => {
+      const regex = new RegExp(query, 'gi');
+      return place.city.match(regex) || place.state.match(regex);
+    });
+  }
+
+  function displayMatches() {
+    const matches = findMatches(this.value, cities);
+    const html = matches.map((place) => {
+      const regex = new RegExp(this.value, 'gi');
+      const cityName = place.city.replace(regex, `<span class="hl">${this.value}</span>`);
+      const stateName = place.state.replace(regex, `<span class="hl">${this.value}</span>`);
+      // Could add a "numberWithCommas" function to format the population as well.
+
+      return `
+        <li>
+          <span class="name">${cityName}, ${stateName}</span>
+          <span class="population">${place.population}</span>
+        </li>
+      `;
+    }).join('');
+    suggestions.innerHTML = html;
+  }
+
+  const searchInput = document.querySelector('.search');
+  const suggestions = document.querySelector('.suggestions');
+
+  searchInput.addEventListener('change', displayMatches);
+  searchInput.addEventListener('keyup', displayMatches);
 
 </script>
   </body>