本文介绍了javascript到达路径数组的元素的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我得到了这个路径数组:
I got this path array:
const path = ["a", "b", "c", "d"]和类似的对象:
let obj = { "a": { "b": { "c": { "d": 10, "e": 20 } } } },而我想删除该 obj ["a"] ["b"] ["c"] ["d"] ,这样我的 obj 将
and I would like to delete that obj["a"]["b"]["c"]["d"] so my obj will be
{ "a": { "b": { "c": { "e": 20 } } } }我尝试做一些 path.forEach 循环,将其附加,但是找不到我希望附加的正确方法,因此可以访问 obj 定位到正确的位置.
I've tried to do some path.forEach looping, appending it but couldn't find a proper way which I appended it as I wish to, so I could access obj to the right place.
推荐答案您可以递归地执行此操作,然后使用 delete 删除基本情况下的最终键值对:
You could do this recursively and then use delete to remove the final key-value pair in your base-case:
const path = ["a", "b", "c", "d"] const obj = { "a": { "b": { "c": { "d": 10, "e": 20 } } } }; const remove_from_path = (obj, [prop, ...rest]) => !rest.length ? delete obj[prop] : remove_from_path(obj[prop], rest); remove_from_path(obj, path); console.log(obj);
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javascript到达路径数组的元素
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