HTML5学堂:每天一道题,强壮程序员!今日的HTML5题目,主要涉及到JavaScript中的函数、函数返回值和作用域的相关知识。一起来看题目吧~!
<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<title>HTML5学堂 - H5course</title>
<meta name="viewport" content="width=device-width,user-scalable=no">
<link rel="stylesheet" href="model/css/reset.css">
</head>
<body>
<div class="wrap"></div>
<script>
var username = 'HTML5学堂';
var result = '返回结果';
function joinIt(result) {
result = result + 'http://www.h5course.com';
}
username = joinIt(username);
console.log(result);
console.log(username);
</script>
</body>
</html>
如上代码,result和username,分别是多少?
关于每日代码练习题的答案和解析,我们会在下一次作业中发布相关答案以及基本原理。