html运行实例（jsck_foreach_3）-搜寻教程库

代码示例：（标识：jsck_foreach_3）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 数组</h1>

<p>将每个元素的值乘以 10：</p>

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

<script>
const numbers = [65, 44, 12, 4];
numbers.forEach(myFunction)

document.getElementById("demo").innerHTML = numbers;

function myFunction(item, index, arr) {
  arr[index] = item * 10;
}
</script>

</body>
</html>