solution wesbos#6

Author: rustamyusupov

06 - Type Ahead/index-START.html

@@ -17,6 +17,46 @@
 <script>
 const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
 
+const cities = [];
+const searchInput = document.querySelector('.search');
+const suggestions = document.querySelector('.suggestions');
+
+fetch(endpoint)
+  .then(blob => blob.json())
+  .then(data => cities.push(...data));
+
+function findMatches(word, cities) {
+  return cities.filter(place =>
+    place.city.toLowerCase().includes(word.toLowerCase()) || place.state.toLowerCase().includes(word.toLowerCase())
+  );
+}
+
+function numberWithCommas(x) {
+  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
+}
+
+function displayMatch() {
+  const matches = findMatches(this.value, cities);
+
+  const html = matches.map(place => {
+    const regex = new RegExp(this.value, 'gi');
+    const city = place.city.replace(regex, `<span class="hl">${this.value}</span>`);
+    const state = place.state.replace(regex, `<span class="hl">${this.value}</span>`);
+
+    return `
+      <li>
+        <span class="name">${city}, ${state}</span>
+        <span class="population">${numberWithCommas(place.population)}</span>
+      </li>
+    `;
+  }).join('');
+
+  suggestions.innerHTML = html;
+}
+
+searchInput.addEventListener('change', displayMatch);
+searchInput.addEventListener('keyup', displayMatch);
+
 </script>
   </body>
 </html>