大家好,我正在尝试找到最动态的方法来遍历数组并返回特定值返回特定值...json 结构很深,可能会发生变化,是否可以有一个 $.each() 公式可以帮助?
例子:
var myobj = {
obj1: { key1: 'val1', key2: 'val2' },
obj2: { key1: '2val1',
key2: { nest1: 'val1', nest2: 'val2', nest3: 'val3' },
key3: { nest1: 'K3val1', nest2: 'K3val2',
nest3: [
{ nest1: 'val1', nest2: 'val2', nest3: 'val3' },
{ nest1: 'val1', nest2: 'val2', nest3: 'val3' }
]
}
},
obj3: { key1: 'dddddval1', key2: 'val2' }
}
现在假设我想检索“K3val2
”值,而不是像这样对其进行硬编码:myobj.obj2.key3.nest2
有一种动态的方式吗这与 $.each()
mybe?
最佳答案
您可以简单地嵌套调用 $.each
:
// Loop the top level
$.each(myobj, walker);
function walker(key, value) {
// ...do what you like with `key` and `value`
if (value !== null && typeof value === "object") {
// Recurse into children
$.each(value, walker);
}
}
如果你想知道自己有多深,你也可以这样做:
var path = "";
// Loop the top level
$.each(myobj, walker);
function walker(key, value) {
var savepath = path;
path = path ? (path + "." + key) : key;
// ...do what you like with `key` and `value`
if (value !== null && typeof value === "object") {
// Recurse into children
$.each(value, walker);
}
path = savepath;
}
关于javascript - 使用 jQuery 遍历嵌套对象,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/17546739/