<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<title>Examples</title>
<meta name="description" content="">
<meta name="keywords" content="">
<link href="" rel="stylesheet">
</head>
<body>
<script type="text/javascript">
var obj = {
sex: 'girl',
age: '15'
}
var sec = obj;
sec.sex = 'boy';
obj.sex = 'nn'
console.log(obj)
console.log(sec)
</script>
<script type="text/javascript">
var foo = 1
function third(){
console.log(foo)
var foo = 2;
console.log(foo)
}
third()
</script>
</body>
</html>