[英]Loop through nested objects with jQuery
嘿大家我正在嘗試找到循環數組最有活力的方法並返回特定值返回特定值... json結構深刻且可能會更改,是否有可以幫助的$ .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' }
}
現在讓我說我想要檢索“ K3val2
”值,而不是像這樣硬編碼: myobj.obj2.key3.nest2
有一個動態的方式我用$.each()
mybe做這個嗎?
您可以簡單地將調用嵌套到$.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,你也可以這樣做:
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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