JS 30 updates

Greg Pfaff · Greg Pfaff · commit a8fe8fc58911 · 2017-05-24T09:50:42.000-05:00
diff --git a/08 - Fun with HTML5 Canavsa/index-START.html b/08 - Fun with HTML5 Canavsa/index-START.html
@@ -7,6 +7,67 @@
 <body>
 <canvas id="draw" width="800" height="800"></canvas>
 <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 = '20';
+
+  let isDrawing = false;
+  let lastX = 0;
+  let lastY = 0;
+  let hue = 0;
+  let direction = true;
+
+  function draw(event) {
+    if (!isDrawing) return;
+    console.log(event);
+
+    ctx.strokeStyle = `hsl(${hue}, 100%, 50%)`;
+    ctx.beginPath();
+    ctx.moveTo(lastX, lastY);
+    ctx.lineTo(event.offsetX, event.offsetY);
+    ctx.stroke();
+    hue++;
+
+    if (hue >= 360) {
+      hue = 0;
+    }
+    
+    if (ctx.lineWidth >= 100 || ctx.lineWidth <= 1) {
+      direction = !direction;
+    }
+
+    if (direction) {
+      ctx.lineWidth++
+    } else {
+      ctx.lineWidth--;
+    }
+
+    [lastX, lastY] = [event.offsetX, event.offsetY]
+  }
+
+
+
+  canvas.addEventListener('mousemove', draw);
+  canvas.addEventListener('mousedown', (event) => {
+    isDrawing = true,
+    [lastX, lastY] = [event.offsetX, event.offsetY];
+  });
+  canvas.addEventListener('mouseout', () => isDrawing = false);
+  canvas.addEventListener('mouseup', () => isDrawing = false);
+
+
+
+
+
 </script>
 
 <style>
diff --git a/09 - Dev Tools Domination/index-START.html b/09 - Dev Tools Domination/index-START.html
@@ -6,7 +6,7 @@
 </head>
 <body>
 
-  <p onClick="makeGreen()">×BREAK×DOWN×</p>
+  <p onclick="makeGreen()">×BREAK×DOWN×</p>
 
   <script>
     const dogs = [{ name: 'Snickers', age: 2 }, { name: 'hugo', age: 8 }];
diff --git a/10 - Hold Shift and Check Checkboxes/index-START.html b/10 - Hold Shift and Check Checkboxes/index-START.html
@@ -104,6 +104,31 @@
   </div>
 
 <script>
+  const checkBoxes = Array.from(document.getElementsByTagName('input'));
+  let checked = false;
+  console.log(checkBoxes);
+
+  checkBoxes.forEach((checkbox) => {
+    console.log(checkbox);
+    checkbox.addEventListener('click', (event) => {
+      if ('input') {
+        checkbox.setAttribute('data-value', 'checked');
+      } else {
+        checkbox.removeAttribute('data-value', 'checked');
+      }
+    })
+  });
+
+
+  // checkBoxes.addEventListener('click', (event) => {
+  //   if ('input:checked') {
+  //     console.log('Checked');
+  //   }
+  // })
+
+  console.log(checkBoxes);
+
+
 </script>
 </body>
 </html>
