<!-- ch01-before-webpack/04-performance/partial-use/index.html -->
<!DOCTYPE html>
<html>
<head>
<script src="https://unpkg.com/[email protected]/lodash.js"></script>
</head>
<body>
<h1>All</h1>
<a href="./join.html">Go to Only join</a>
<script>
console.log(_.join(['For', 'all'], ' '));
</script>
</body>
</html>為了使用 _.join() 而引入了完整的 Lodash 庫。
<!-- ch01-before-webpack/04-performance/partial-use/join.html -->
<!DOCTYPE html>
<html>
<head>
<!-- ... -->
<script src="https://unpkg.com/[email protected]/join.js"></script>
</head>
<body>
<h1>Only join</h1>
<a href="./index.html">Go to All</a>
<script>
console.log(join(['Only', 'join'], ' '));
</script>
</body>
</html>從 Lodash 庫中引入單獨的 join() 。
引入完整的庫所需的容量與時間都比只引入所需來得多。