老师，帮我审核一下，谢谢
来源：3-11 编程练习
慕仰5214815
2020-08-06 07:49:37
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>数据类型之NaN</title>
</head>
<body>
<script>
//补充代码
var settings=null,
age=10,
name_01="我是字符串",
id="10",
adress;
console.log(typeof settings);//object
console.log(typeof id);//string
console.log(typeof adress);//undefined
console.log(Number(settings));//0
console.log(Number(id)); //10
console.log(Number(adress));//NaN
console.log(isNaN(settings)); //数值false
console.log(isNaN(age));//数值false
console.log(isNaN(name_01));//非数值true
console.log(isNaN(id));//数值false
console.log(isNaN(adress));//非数值true
</script>
</body>
</html>
写回答
1回答
-
好帮手慕星星
2020-08-06
同学你好，代码检测没有问题，很棒。继续加油，祝学习愉快！
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