Ex6 - Type ahead

fthebaud · fthebaud · commit 5691666bf4d3 · 2017-01-05T16:08:45.000+01:00
diff --git a/06 - Type Ahead/index.html b/06 - Type Ahead/index.html
@@ -0,0 +1,21 @@
+<!DOCTYPE html>
+<html lang="en">
+<head>
+  <meta charset="UTF-8">
+  <title>Type Ahead 👀</title>
+  <link rel="stylesheet" href="style.css">
+</head>
+<body>
+
+  <form class="search-form">
+    <input type="text" class="search" placeholder="City or State">
+    <ul class="suggestions">
+      <li>Filter for a city</li>
+      <li>or a state</li>
+    </ul>
+  </form>
+
+  <script src="script.js" charset="utf-8"></script>
+
+  </body>
+</html>
diff --git a/06 - Type Ahead/script.js b/06 - Type Ahead/script.js
@@ -0,0 +1,38 @@
+'use strict';
+
+const endpoint = 'https://gist.githubusercontent.com/Miserlou/c5cd8364bf9b2420bb29/raw/2bf258763cdddd704f8ffd3ea9a3e81d25e2c6f6/cities.json';
+
+let cities = [];
+
+fetch(endpoint)
+  .then(blob => blob.json())
+  .then(data => cities = data);
+
+function findMatches(wordToMatch, cities) {
+  return cities.filter((place) => {
+    const regexp = new RegExp(wordToMatch, 'gi');
+    return place.city.match(regexp) || place.state.match(regexp);
+  });
+}
+
+function numberWithCommas(x) {
+  return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ',');
+}
+
+function displayMatcher(){
+  const matches = findMatches(this.value, cities);
+  const regexp = new RegExp(this.value, 'gi');
+  const html = matches.map(place => {
+    const cityName = place.city.replace(regexp, `<span class='hl'>${this.value}</span>`);
+    const stateName = place.state.replace(regexp, `<span class='hl'>${this.value}</span>`);
+    return `
+      <li>
+        <span class="name">${cityName}, ${stateName}</span>
+        <span class="population">${numberWithCommas(place.population)}</span>
+      </li>
+    `;
+  }).join('');
+  document.querySelector('.suggestions').innerHTML = html;
+}
+
+document.querySelector('.search').addEventListener('keyup', displayMatcher);
