html运行实例（eg_js_es5_array_foreach）-搜寻教程库

代码示例：（标识：eg_js_es5_array_foreach）

<!DOCTYPE html>
<html>
<body>

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

<p>为每个数组元素调用一次函数。</p>

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

<script>
var txt = "";
var numbers = [45, 4, 9, 16, 25];
numbers.forEach(myFunction);
document.getElementById("demo").innerHTML = txt;

function myFunction(value) {
  txt = txt + value + "<br>"; 
}
</script>

</body>
</html>