Initial commit

src/digicode.ts

@@ -0,0 +1,34 @@
+import './style.css'
+
+const code = '1234';
+
+const display = document.getElementById('display') as HTMLDivElement;
+const light = document.getElementById('light') as HTMLDivElement;
+const keypad = document.getElementById('keypad') as HTMLDivElement;
+
+function resetCode() {
+  display.innerText = '';
+  light.classList.remove('is-success', 'is-error');
+}
+
+function composeDigit(digit: number) {
+  const output = display.innerText + digit.toString();
+  display.innerText = output;
+  if (!code.startsWith(output)) {
+    light.classList.add('is-error');
+    setTimeout(resetCode, 1000)
+    return;
+  }
+  if (code === output) {
+    light.classList.add('is-success');
+    return;
+  }
+}
+
+for (let i = 1; i < 11; i++) {
+  const digit = i % 10;
+  const button = document.createElement('button');
+  button.innerText = digit.toString();
+  button.onclick = () => composeDigit(digit);
+  keypad.appendChild(button);
+}

src/style.css

@@ -0,0 +1,96 @@
+:root {
+  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+  font-weight: 400;
+
+  color-scheme: light dark;
+  color: rgba(255, 255, 255, 0.87);
+  background-color: #242424;
+
+  font-synthesis: none;
+  text-rendering: optimizeLegibility;
+  -webkit-font-smoothing: antialiased;
+  -moz-osx-font-smoothing: grayscale;
+  -webkit-text-size-adjust: 100%;
+}
+
+body {
+  margin: 0;
+  display: flex;
+  place-items: center;
+  min-width: 320px;
+  min-height: 100vh;
+}
+
+h1 {
+  font-size: 3.2em;
+  line-height: 1.1;
+}
+
+#app {
+  max-width: 1280px;
+  margin: 0 auto;
+  padding: 2rem;
+  text-align: center;
+}
+
+button {
+  border-radius: 8px;
+  border: 1px solid transparent;
+  padding: 0.6em 1.2em;
+  font-size: 1em;
+  font-weight: 500;
+  font-family: inherit;
+  background-color: #1a1a1a;
+  cursor: pointer;
+  transition: border-color 0.25s;
+}
+button:hover {
+  border-color: #646cff;
+}
+button:focus,
+button:focus-visible {
+  outline: 4px auto -webkit-focus-ring-color;
+}
+
+@media (prefers-color-scheme: light) {
+  :root {
+    color: #213547;
+    background-color: #ffffff;
+  }
+  a:hover {
+    color: #747bff;
+  }
+  button, #light {
+    background-color: #f9f9f9;
+  }
+}
+
+#output {
+  display: flex;
+}
+#display {
+  flex-grow: 1;
+}
+
+#light {
+  width: 24px;
+  height: 24px;
+  border-radius: 50%;
+  background-color: #1a1a1a;
+}
+#light.is-error {
+  background-color: #fd3838;
+}
+#light.is-success {
+  background-color: #46fd46;
+}
+
+#keypad {
+  display: grid;
+  grid-template-columns: repeat(3, 1fr);
+}
+
+#keypad > button:last-child {
+  grid-column: 2;
+}