JSON我实在不("(" + txt + ")")的意思，为什么搞那么多+号和‘号？
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>菜鸟教程(runoob.com)</title>
</head>
<body>
<h2>从 JSON 字符串中创建对象</h2>
<p>
名: <span id="fname"></span><br>
姓: <span id="lname"></span><br>
</p>
<script>
var txt = '{"employees":[' +
'{"firstName":"John","lastName":"Doe" },' +
'{"firstName":"Anna","lastName":"Smith" },' +
'{"firstName":"Peter","lastName":"Jones" }]}';
var obj = eval ("(" + txt + ")");
document.getElementById("fname").innerHTML=obj.employees[1].firstName
document.getElementById("lname").innerHTML=obj.employees[1].lastName
</script>
</body>
</html>
国服第一前端狗浏览 1717回答 2
2回答
-
_潇潇暮雨
字符串拼接啊，如果想要简单的写法，推荐使用ES6的模板字符串。
随时随地看视频慕课网APP
相关分类
JavaScript