​x
 
<!DOCTYPE html>
<html>
<body>
​
<h1>JavaScript 箭头函数</h1>
​
<p>IE11 或更早版本不支持箭头功能。</p>
​
<p id="demo"></p>
​
<script>
const x = (x, y) => { return x * y };
document.getElementById("demo").innerHTML = x(5, 5);
</script>
​
</body>
</html>
​