js中取模运算、求商及取整方法

作者: 别别扭扭的王姑娘 | 来源:发表于2017-02-23 22:55 被阅读0次

在此整理一下js中的取模运算、求商及取整方法

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width,user-scalable=no,initial-scale=1.0,maximum-scale=1.0,minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <style></style>
    <script>
        //取模
        document.write(1%2);
        document.write(5%2);
        //求商
        console.log(1/2);
        console.log(5/2);
        //取整
        console.log(parseInt(1/2));
        console.log(parseInt(5/2));
        //向上取整
        console.log(Math.ceil(1/2));
        //向下取整
        console.log(Math.floor(5/2));
    </script>
</head>
<body>
    
</body>
</html>

得到结果如下：

取模求商及取整.jpg