diff --git a/01 - JavaScript Drum Kit/index-START.html b/01 - JavaScript Drum Kit/index-START.html
index 4070d32767..ed21f8b278 100644
--- a/01 - JavaScript Drum Kit/index-START.html	
+++ b/01 - JavaScript Drum Kit/index-START.html	
@@ -58,7 +58,35 @@
   <audio data-key="76" src="sounds/tink.wav"></audio>
 
 <script>
+  function playSound(e){
+    const audio = document.querySelector(`audio[data-key="${e.keyCode}"]`);
+    const key = document.querySelector(`.key[data-key="${e.keyCode}"]`); // . selects class. Can also use div [data-key="${e.keyCode}"]
+    if (!audio) {
+      return; // stop function from running if key is not found
+    }
+    audio.currentTime = 0; // rewinds to the start of the file
+    audio.play();
+     // same as using jQuery key.addClass('.playing'); add's playing class from css
+     // can also use .remove and .toggle to change classes
+    key.classList.add('playing');
 
+  }
+  function removeTransition(e){
+      if (e.propertyName !== 'transform' ) {
+        return; // skip any transition that isnt transform
+      }
+
+      // this is equal to what was called against it, in this case this = key
+      this.classList.remove('playing');
+
+  };
+
+  const keys = document.querySelectorAll(`.key`);
+  keys.forEach((key) => {
+    key.addEventListener('transitionend', removeTransition)
+  });
+
+  window.addEventListener('keydown', playSound);
 </script>
 
 
diff --git a/02 - JS + CSS Clock/index-START.html b/02 - JS + CSS Clock/index-START.html
index 2712384201..5efd64a07a 100644
--- a/02 - JS + CSS Clock/index-START.html	
+++ b/02 - JS + CSS Clock/index-START.html	
@@ -61,13 +61,41 @@
       background:black;
       position: absolute;
       top:50%;
+      transform-origin: 100%;
+      transform: rotate(90deg);
+      transition: all 0.05s;
+      transition-timing-function: cubic-bezier(0.68, -0.55, 0.27, 1.55);
     }
 
   </style>
 
   <script>
+  const secondHand = document.querySelector('.second-hand');
+  const minsHand = document.querySelector('.min-hand');
+  const hourHand = document.querySelector('.hour-hand');
 
+  function setDate() {
+    const now = new Date();
 
+    // seconds , add 90 so it starts vertically
+    const seconds = now.getSeconds();
+    const secondsDegrees = ((seconds / 60) * 360) + 90;
+    secondHand.style.transform = `rotate(${secondsDegrees}deg)`;
+
+    // minutes
+    const mins = now.getMinutes();
+    const minsDegrees = ((mins / 60) * 360) + 90;
+    minsHand.style.transform = `rotate(${minsDegrees}deg)`;
+
+    // hour
+    const hours = now.getHours();
+    const hourDegrees = ((hours / 60) * 360) + 90;
+    hourHand.style.transform = `rotate(${hourDegrees}deg)`;
+
+    console.log(`Time: ${hours} : ${mins} : ${seconds}`);
+  }
+
+  setInterval(setDate, 1000);
   </script>
 </body>
 </html>
diff --git a/03 - CSS Variables/index-START.html b/03 - CSS Variables/index-START.html
index 7171607a8b..78a8cbbbcc 100644
--- a/03 - CSS Variables/index-START.html	
+++ b/03 - CSS Variables/index-START.html	
@@ -21,7 +21,21 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   <img src="https://source.unsplash.com/7bwQXzbF6KE/800x500">
 
   <style>
+  :root {
+    --base: #ffc600;
+    --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
     */
@@ -48,6 +62,18 @@ <h2>Update CSS Variables with <span class='hl'>JS</span></h2>
   </style>
 
   <script>
+  const inputs = document.querySelectorAll('.controls input');
+
+  function handleUpdate(){
+      const suffix = this.dataset.sizing || '';
+      document.documentElement.style.setProperty(`--${this.name}`, this.value + suffix);
+  }
+
+  inputs.forEach((input) => {
+    input.addEventListener('change', handleUpdate);
+    input.addEventListener('mousemove', handleUpdate);
+
+  })
   </script>
 
 </body>
diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 317883a4c1..9b853f461b 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -31,29 +31,93 @@
 
     // Array.prototype.filter()
     // 1. Filter the list of inventors for those who were born in the 1500's
+    const fifteen = inventors.filter((inventor) => {
+      return inventor.year >= 1500 && inventor.year <= 1600;
+    });
+
+    console.log('Born in 1500:');
+    console.table(fifteen);
 
     // Array.prototype.map()
     // 2. Give us an array of the inventors' first and last names
 
+    const fullNames = inventors.map((inventor) => {
+      return `${inventor.first} ${inventor.last}`;
+    });
+    console.log('inventors full names:');
+    console.log(fullNames);
+
     // Array.prototype.sort()
     // 3. Sort the inventors by birthdate, oldest to youngest
 
+    // this sorts by age not brithdate
+    const birthdate = inventors.sort((a,b) => {
+
+      return (a.year > b.year ? 1 : -1);
+    })
+
+    console.log('Ordered by birthday');
+    console.table(birthdate);
     // 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('Total Years: ');
+    console.log(totalYears);
+
     // 5. Sort the inventors by years lived
 
+    const oldest = inventors.sort((a,b) => {
+      const a_age = a.passed - a.year;
+      const b_age = b.passed - b.year;
+
+      return b_age - a_age;
+    })
+
+    console.log('Years lived');
+    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
 
+    // in chrome console
+    // const list = document.querySelector('.mw-category');
+    // const streets = list.querySelectorAll('a');
+    // const streetNames = Array.from(streets);
+    // const streetsWithDe = streetArray.filter((street) => {return street.text.includes('de')});
 
     // 7. sort Exercise
     // Sort the people alphabetically by last name
+    const peopleByLastName = people.sort((a,b) => {
+      const a_names = a.split(', ');
+      const b_names = b.split(', ');
+
+      console.log(`comparing ${a_names[1]} with ${b_names[1]}`);
+      const res = a_names[1] > b_names[1] ? a_names[1] : b_names[1];
+      console.log(`alpha is ${res}`);
+      return a_names[1] > b_names[1] ? 1 : -1;
+    });
+
+    console.log('People by last names:');
+    console.log(peopleByLastName);
 
     // 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((object, item) => {
+      if (!object[item]) {
+        object[item] = 0;
+      }
+      object[item]++;
+      return object;
+    }, {});
+
+    console.log('Transportation grouped:');
+    console.log(transportation);
+
   </script>
 </body>
 </html>
diff --git a/05 - Flex Panel Gallery/index-START.html b/05 - Flex Panel Gallery/index-START.html
index e1d643ad5c..c17531b97a 100644
--- a/05 - Flex Panel Gallery/index-START.html	
+++ b/05 - Flex Panel Gallery/index-START.html	
@@ -24,6 +24,7 @@
     .panels {
       min-height:100vh;
       overflow: hidden;
+      display: flex;
     }
 
     .panel {
@@ -41,6 +42,11 @@
       font-size: 20px;
       background-size:cover;
       background-position:center;
+      flex: 1;
+      align-items: center;
+      justify-content: center;
+      display: flex;
+      flex-direction: column;
     }
 
 
@@ -54,7 +60,16 @@
       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.open-active > *:last-child { transform: translateY(0%); }
 
     .panel p {
       text-transform: uppercase;
@@ -68,6 +83,7 @@
 
     .panel.open {
       font-size:40px;
+      flex: 5;
     }
 
     .cta {
@@ -107,6 +123,28 @@
   </div>
 
   <script>
+  const panels = document.querySelectorAll('.panel');
+
+  function toggleOpen(){
+    console.log('hello');
+    console.log(this);
+    this.classList.toggle('open');
+  }
+
+  function toggleActive(e){
+    console.log(e.propertyName);
+    if (e.propertyName.includes('flex')) {
+      this.classList.toggle('open-active');
+    }
+  };
+
+  panels.forEach((panel) => {
+    panel.addEventListener('click', toggleOpen);
+  });
+
+  panels.forEach((panel) => {
+    panel.addEventListener('transitionend', toggleActive);
+  });
 
   </script>
 
diff --git a/06 - Type Ahead/index-START.html b/06 - Type Ahead/index-START.html
index 1436886918..26ba06a013 100644
--- a/06 - Type Ahead/index-START.html	
+++ b/06 - Type Ahead/index-START.html	
@@ -17,6 +17,58 @@
 <script>
 const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
 
+const cities = [];
+
+fetch(endpoint).then((blob) => {
+  return blob.json();
+})
+  .then((data) => {
+    cities.push(...data);
+  })
+  .catch((e) => {
+    console.log(e);
+  })
+
+function findMatches(wordToMatch, cities){
+  return cities.filter((place) => {
+
+    // g means we will do a global search via the regex and i means case incensitive
+    const regex = new RegExp(wordToMatch, 'gi');
+    return place.city.match(regex) || place.state.match(regex);
+  });
+}
+
+function numberWithCommas(x) {
+  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+}
+
+function displayMatches(){
+  const matchArray = findMatches(this.value, cities);
+
+  // .join turns array into one big string
+  const html = matchArray.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>`);
+    return `
+    <li>
+      <span class='name'>${cityName}, ${stateName}</span>
+      <span class='population'>${numberWithCommas(place.population)}</span>
+    </li>
+    `;
+  }).join('');
+  suggestions.innerHTML = html;
+};
+
+const searchInput = document.querySelector('.search');
+const suggestions = document.querySelector('.suggestions');
+
+// evertime a word is entered
+searchInput.addEventListener('change', displayMatches);
+// fire evertime a key is pressed
+searchInput.addEventListener('keyup', displayMatches);
+
+
 </script>
   </body>
 </html>
diff --git a/07 - Array Cardio Day 2/index-START.html b/07 - Array Cardio Day 2/index-START.html
index 969566ff78..d1f87c63c9 100644
--- a/07 - Array Cardio Day 2/index-START.html	
+++ b/07 - Array Cardio Day 2/index-START.html	
@@ -26,16 +26,50 @@
 
     // Some and Every Checks
     // Array.prototype.some() // is at least one person 19 or older?
+    const isAdult = people.some((person) => {
+        const date = new Date;
+        return date.getFullYear() - person.year > 19
+    })
+
+    console.log('is at least one person 19 or older');
+    console.log(isAdult);
+
     // Array.prototype.every() // is everyone 19 or older?
 
+    const allAdults = people.every((person) => {
+      return (new Date).getFullYear() - person.year > 19
+    });
+
+    console.log('is everyone 19 or older?');
+    console.log(allAdults);
+
     // Array.prototype.find()
     // Find is like filter, but instead returns just the one you are looking for
     // find the comment with the ID of 823423
 
+    const correctComment = comments.find((comment) => {
+      return comment.id === 823423;
+    });
+
+    console.log(`find the comment with the ID of 823423`);
+    console.log(correctComment);
     // Array.prototype.findIndex()
     // Find the comment with this ID
     // delete the comment with the ID of 823423
 
+    const index = comments.findIndex((comment) => {
+      return comment.id ===  823423;
+    });
+
+    const removeComment = comments.splice(index, 1);
+
+    console.log(
+         `Find the comment with this ID
+        delete the comment with the ID of 823423`
+      );
+
+    console.log(removeComment);
+  
   </script>
 </body>
 </html>
diff --git a/08 - Fun with HTML5 Canvas/index-START.html b/08 - Fun with HTML5 Canvas/index-START.html
index 37c148df07..6d45593021 100644
--- a/08 - Fun with HTML5 Canvas/index-START.html	
+++ b/08 - Fun with HTML5 Canvas/index-START.html	
@@ -7,8 +7,64 @@
 <body>
 <canvas id="draw" width="800" height="800"></canvas>
 <script>
-</script>
+  const canvas = document.querySelector('#draw');
+  const ctx = canvas.getContext('2d');
+  canvas.width = window.innerWidth;
+  canvas.height = window.innerHeight;
+  ctx.strokeStyle = '#BADA55';
+  ctx.lineJoin = 'round';
+  ctx.lineCap = 'round';
+  ctx.lineWidth = 100;
+  // clours overlay, google globalCompositeOperation 
+  // ctx.globalCompositeOperation = 'multiply';
+  let isDrawing = false;
+  let lastX =0;
+  let lastY =0;
+  // http://mothereffinghsl.com/
+  let hue = 0;
+  let direction = true;
+
+
+  function draw(e){
+    if (!isDrawing) {
+      return;
+    }
+    console.log(e);
+    ctx.strokeStyle =`hsl(${hue}, 100%, 50%)`;
+    ctx.beginPath();
+    // start from
+    ctx.moveTo(lastX, lastY);
+    // go to
+    ctx.lineTo(e.offsetX, e.offsetY);
+    ctx.stroke();
+    [lastX, lastY] = [e.offsetX, e.offsetY];
+    hue++;
+    if (hue >= 360) {
+      hue = 0;
+    }
+
+    if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+      direction = !direction;
+    }
+
+    if (direction) {
+      ctx.lineWidth++;
+    } else {
+      ctx.lineWidth--;
+    }
+  }
+
+
+  canvas.addEventListener('mousedown', (e) => {
+    isDrawing = true;
+    [lastX, lastY] = [e.offsetX, e.offsetY];
+  });
 
+  canvas.addEventListener('mousemove', draw);
+  canvas.addEventListener('mouseup', () => isDrawing = false);
+  canvas.addEventListener('mouseout', () => isDrawing = false);
+
+</script>
 <style>
   html, body {
     margin:0;
diff --git a/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
index eb7ed310bb..959af96476 100644
--- a/10 - Hold Shift and Check Checkboxes/index-START.html	
+++ b/10 - Hold Shift and Check Checkboxes/index-START.html	
@@ -104,6 +104,51 @@
   </div>
 
 <script>
+// const checkboxes = [...document.querySelectorAll('input')];
+// window.addEventListener('keydown', (e) => {
+//   if (e.keyCode===16) {
+//     indices(checkboxes);
+//   }
+//
+// });
+//
+// function indices(checkboxes){
+//   let checkedIndices=[];
+//   checkboxes.forEach((checkbox, index) => {
+//     if (checkbox.checked === true) {
+//       checkedIndices.push(index);
+//     }
+//   })
+//
+//   checkboxes.forEach((checkbox, index) => {
+//     if (index >= checkedIndices[0] && index <= checkedIndices[1] ) {
+//       checkbox.checked = true;
+//     }
+//   })
+// }
+//
+
+const checkboxes = document.querySelectorAll(['.inbox input[type="checkbox"]']);
+let lastChecked;
+let inBetween = false;
+function handleCheck(e){
+  if (e.shiftKey && this.checked) {
+    checkboxes.forEach((checkbox) => {
+      console.log(checkbox);
+      if (checkbox === this || checkbox === lastChecked) {
+        inBetween = !inBetween;
+      }
+
+      if (inBetween) {
+          checkbox.checked = true;
+      }
+    })
+  }
+  lastChecked = this;
+}
+
+checkboxes.forEach(checkbox => checkbox.addEventListener('click', handleCheck))
+
 </script>
 </body>
 </html>
diff --git a/11 - Custom Video Player/scripts.js b/11 - Custom Video Player/scripts.js
index e69de29bb2..6bc6d82966 100644
--- a/11 - Custom Video Player/scripts.js	
+++ b/11 - Custom Video Player/scripts.js	
@@ -0,0 +1,86 @@
+// additional task : Try and make the full screen button work
+
+// Get elements
+const player = document.querySelector('.player');
+const video = player.querySelector('.viewer');
+const progress = player.querySelector('.progress');
+const progressBar = player.querySelector('.progress__filled');    
+const toggle = player.querySelector('.toggle');
+const skipButtons = player.querySelectorAll('[data-skip]');
+const ranges = player.querySelectorAll('.player__slider');
+
+
+// Build functions
+
+function togglePlay(){
+    if (video.paused) {
+        video.play();
+    } else {
+        video.pause();
+    }
+}
+
+function updateButton(){
+    const icon = this.paused ? '►' : '▌▐';
+    toggle.textContent = icon;
+    console.log('Update the button');
+}
+
+function skip(){
+    console.log(this.dataset);
+    video.currentTime += parseFloat(this.dataset.skip);
+}
+
+function handleRangeUpdate(){
+    console.log(this.name, this.value);
+    // you could do it this way
+    // if (this.name === 'volume') {
+    //     video.volume = this.value;    
+    // };
+    
+    // if (this.name === 'playbackRate') {
+    //     video.playbackRate = this.value   
+    // };
+
+    // Alternativly 
+    video[this.name] = this.value;
+}
+
+function handleProgress(){
+    const percent = (video.currentTime / video.duration) * 100;
+    progressBar.style.flexBasis = `${percent}%`;
+}
+
+function scrub(e){
+    console.log(e);
+    const scrubTime = (e.offsetX / progress.offsetWidth) * video.duration;
+    video.currentTime = scrubTime;
+}
+// Hook up event listeners
+
+video.addEventListener('click', updateButton);
+video.addEventListener('play', updateButton);
+video.addEventListener('pause', updateButton);
+video.addEventListener('timeupdate', handleProgress);
+
+toggle.addEventListener('click', togglePlay);
+
+skipButtons.forEach((button) => {
+    button.addEventListener('click', skip);
+});
+
+ranges.forEach((range) => {
+    range.addEventListener('change', handleRangeUpdate);
+});
+
+ranges.forEach((range) => {
+    range.addEventListener('mousemove', handleRangeUpdate);
+});
+
+
+// check mousedown to make sure we arent always running scrub when we dont need to
+let mouseDown = false;
+progress.addEventListener('click', scrub);
+progress.addEventListener('mousemove', (e) => mouseDown && scrub(e));
+progress.addEventListener('mousedown', mouseDown = true );
+progress.addEventListener('mouseup', mouseDown = false );
diff --git a/12 - Key Sequence Detection/index-START.html b/12 - Key Sequence Detection/index-START.html
index 8cab786140..0a8e3d93f5 100644
--- a/12 - Key Sequence Detection/index-START.html	
+++ b/12 - Key Sequence Detection/index-START.html	
@@ -7,6 +7,18 @@
 </head>
 <body>
 <script>
+const pressed = [];
+const secretCode = 'mjdude';
+window.addEventListener('keyup', (e) => {
+  console.log(e.key);
+  pressed.push(e.key);
+  pressed.splice(-secretCode.length -1, pressed.length - secretCode.length);
+  console.log(pressed);
+  if(pressed.join('').includes(secretCode)){
+    console.log('we have a code');
+    cornify_add();
+  }
+})
 </script>
 </body>
 </html>
diff --git a/13 - Slide in on Scroll/index-START.html b/13 - Slide in on Scroll/index-START.html
index 0b9fb8fccb..6d7b0a9922 100644
--- a/13 - Slide in on Scroll/index-START.html	
+++ b/13 - Slide in on Scroll/index-START.html	
@@ -43,6 +43,11 @@ <h1>Slide in on Scroll</h1>
   </div>
 
   <script>
+    // taken off the internet , since this is a framework free tutorial
+    // lodash also has a debounce function.
+    // see this for an explanation of the function : 
+    // https://john-dugan.com/javascript-debounce/
+
     function debounce(func, wait = 20, immediate = true) {
       var timeout;
       return function() {
@@ -58,6 +63,28 @@ <h1>Slide in on Scroll</h1>
       };
     }
 
+    const sliderImages = document.querySelectorAll('.slide-in');
+
+    function checkSlide(e){
+      sliderImages.forEach((sliderImage) => {
+
+        // half way into the image
+        const slideInAt = (window.scrollY + window.innerHeight) - sliderImage.height / 2;
+
+        // bottom of the image
+        const imageBottom = sliderImage.offsetTop + sliderImage.height;
+        const isHalfShown = slideInAt > sliderImage.offsetTop;
+        const isNotScrolledPast = window.scrollY < imageBottom;
+
+        if(isHalfShown && isNotScrolledPast){
+          sliderImage.classList.add('active');
+        } else{
+          sliderImage.classList.remove('active');          
+        }
+      })
+    }
+
+    window.addEventListener('scroll', debounce(checkSlide));
   </script>
 
   <style>