html运行实例（js_startswith

代码示例：（标识：js_startswith_2）

<!DOCTYPE html>
<html>
<body>

<h2>JavaScript 字符串</h2>

<p>startsWith() 方法。</p>

<p id="demo"></p>

<p>Internet Explorer 不支持 startsWith() 方法。</p>

<script>
let text = "Hello world, welcome to the universe.";
document.getElementById("demo").innerHTML = text.startsWith("world", 6);
</script>

</body>
</html>