Javascript JSON对象的多级数组 - 如何在第二级或更高级别访问键值对 [英] Javascript Multi-level array of JSON objects - how to access key-value pair in second level or higher
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问题描述
考虑以下JSON对象数组：
Consider the following array of JSON objects:
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？以下选项不起作用：
How does one access the "Child21" in javascript? The following options didn't work:
var myString = myList[1].children[0].childname; //Does not work
var myString = myList[1]["children"][0].childname; //Does not work
推荐答案
这对我有用：
myList[1].children[0].childname
这也没关系：
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>
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