<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js eval()</title>
</head>
<body>
<script>
/*参考：https://www.cnblogs.com/ranyonsue/p/6124708.html*/
let s = "true";
let b = eval(s);
console.log("b:", b, typeof b);
// b: true boolean
</script>
</body>
</html>
