[英]Loop through nested objects with jQuery
嘿大家我正在尝试找到循环数组最有活力的方法并返回特定值返回特定值... json结构深刻且可能会更改,是否有可以帮助的$ .each()公式?
例:
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' }
}
现在让我说我想要检索“ K3val2
”值,而不是像这样硬编码: myobj.obj2.key3.nest2
有一个动态的方式我用$.each()
mybe做这个吗?
您可以简单地将调用嵌套到$.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;
}
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