<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>随机点名简单版</title>
<script>
window.onload = function(){
//0 - arr.length-1
var arr = ['宝宝','豆豆','慧新','洪红','黄黄','小子','杜度','方放','顾股','胡胡','谢写','蒋讲','陈美女'];
var name = document.getElementById('name');
var btn = document.getElementById('namee');
btn.onclick = function(){
// 得到一个随机整数
var idx = parseInt(Math.random()*arr.length);
// 把取到的名字写入#name输入框
name.value = arr[idx];
}
}
</script>
</head>
<body>
<input type="text" id="name">
<button id="namee">随机点名</button>
</body>
</html>The above is the detailed content of How to use arrays for random roll call. For more information, please follow other related articles on the PHP Chinese website!
What are the definitions of arrays?
js string to array
Array initialization method
c array initialization method
How to find the maximum and minimum value of array elements in Java
The difference between random and pseudo-random
How to remove the first few elements of an array in php
Summary of java basic knowledge
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
