html运行实例（eg_js_array_filter

代码示例：（标识：eg_js_array_filter_2）

<!DOCTYPE html>
<html>
<body>

<h1>JavaScript Array.filter()</h1>

<p>使用通过测试的所有数组元素创建一个新数组。</p>

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

<script>
var numbers = [45, 4, 9, 16, 25];
var over18 = numbers.filter(myFunction);

document.getElementById("demo").innerHTML = over18;

function myFunction(value) {
  return value > 18;
}
</script>

</body>
</html>