考虑以下 JSON 对象数组:
myList = [
{title:"Parent1",
children:[{childname:"Child11"},
{childname:"Child12"}],
cars:[{carname:"Car11"},
{carname:"Car12"}]
},
{title:"Parent2",
children:[{childname:"Child21"},
{childname:"Child22"}],
cars:[{carname:"Car21"},
{carname:"Car22"}]
}
];
如何在 javascript 中访问“Child21”？以下选项无效:
var myString = myList[1].children[0].childname; //Does not work
var myString = myList[1]["children"][0].childname; //Does not work
最佳答案
这对我来说没问题:
myList[1].children[0].childname
这也行:
myList[1]["children"][0].childname;
完整，
<html>
<body>
<script>
var myList = [
{title:"Parent1",
children:[{childname:"Child11"},
{childname:"Child12"}],
cars:[{carname:"Car11"},
{carname:"Car12"}]
},
{title:"Parent2",
children:[{childname:"Child21"},
{childname:"Child22"}],
cars:[{carname:"Car21"},
{carname:"Car22"}]
}
];
alert (myList[1].children[0].childname);
</script>
</body>
</html>
关于Javascript 多级 JSON 对象数组 - 如何访问第二级或更高级别的键值对，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/1650090/