解析多级javascript对象并仅检索关键字

Question

我需要一个数组来包含我的JavaScript对象的每个键(例如[“中枢神经系统”，“不典型畸胎样横纹肌肉瘤”，“脉络丛瘤”，“脉络丛乳头状瘤”，...)

以下是它的摘录：

    var tumor_types = {
    "CNS" : {
        "Atypical teratoid rhabdoid tumor" : {
            "Category" : "Direct referral",
            "Educational-page" : "/assets/educational-page/atypical-teratoid-rhabdoid-tumor.docx",
        },
        "Choroid plexus tumor" : {
            "Choroid plexus papilloma" : {
                "Category" : "Universal criteria",
                "Educational-page" : "/assets/educational-page/choroid-plexus-papilloma.docx",
            },
            "Choroid plexus carcinoma" : {
                "Category" : "Direct referral",
                "Educational-page" : "/assets/educational-page/choroid-plexus-carcinoma.docx",
            }
        },
        "Embryonal tumor of the CNS - NOS" : {
            "Category" : {
                "Algorithm" : 1,
                "Educational-page" : "/assets/educational-page/embryonal-tumor-CNS-NOS.docx"
            }
        },
        [...]

因此，在键"Category“之前，我需要将肿瘤名称推入一个数组中。这是到目前为止我的递归函数(我第一次做递归)：

    function get_all_tumors_name(data) {
    var result = [];

    $.each(data, function(key, value) {
        result.push(key);

        console.log($.type(value));

        if(key != 'Category' && key != 'Educational-page') {
            var names = get_all_tumors_name(value);
            result = result.concat(names);
        }           

    });

    return result

}

当我运行我之前的代码时，我有一个数组，但在它里面有很多"Category“和”Educational page“，我不想要它们。这就是我添加key != 'Category' && key != 'Educational-page'检查的原因。我的情况还能更好吗？或者我应该简单地从数组中删除每个“类别”和“教育页面”？在我看来，这并不是最理想的。

任何帮助或提示都将不胜感激！

Answer 1

尝试使用递归方法，该方法在找到具有Category键的对象时终止分支：

​

var tumor_types={"CNS":{"Atypical teratoid rhabdoid tumor":{"Category":"Direct referral","Educational-page":"/assets/educational-page/atypical-teratoid-rhabdoid-tumor.docx",},"Choroid plexus tumor":{"Choroid plexus papilloma":{"Category":"Universal criteria","Educational-page":"/assets/educational-page/choroid-plexus-papilloma.docx",},"Choroid plexus carcinoma":{"Category":"Direct referral","Educational-page":"/assets/educational-page/choroid-plexus-carcinoma.docx",}},"Embryonal tumor of the CNS - NOS":{"Category":{"Algorithm":1,"Educational-page":"/assets/educational-page/embryonal-tumor-CNS-NOS.docx"}}}}

const getKeys = (obj, keys=[]) => {
  const theseKeys = Object.keys(obj);
  if (theseKeys.includes('Category')) return;
  keys.push(...theseKeys);
  const theseValues = Object.values(obj);
  theseValues.forEach(child => getKeys(child, keys));
  return keys;
}
console.log(getKeys(tumor_types));

​