how to access object's value without knowing the object's key in javascript?

how to access object's value without knowing the object's key in javascript?

A way for accessing an object's value without knowing the object's key in javascript!

https://repl.it/@xgqfrms1/object-key-and-index

const log = console.log;
// A way for accessing an object's value without knowing the object's key in javascript!


// object index
const units = {
  increasedUsers: "人",
  dau: "人",
  avgVisitCount: "次",
  avgStayDuration: "秒",
  avgVisitDepth: "页",
};

log(`units`, units["dau"]);
log(`units`, units[0]);

const keys = Object.keys(units);

log(`units`, units[keys[0]]);

---

in practice

const tableDataShaper = (arr = []) => {
  if(!arr.length) {
    return [];
  }
  const keys = Object.keys(arr);
  const values = arr[keys[0]] || [];
  const result = values.map((obj, i) => {
    const {
      date,
    } = obj;
    const temp = {
      date,
    };
    for (const key of keys) {
      temp[key] = arr[key][i].value;
    }
    return temp;
  }) || [];
  return result;
};

https://repl.it/@xgqfrms1/object-key-and-index

refs

---

---

©xgqfrms 2012-2020

www.cnblogs.com/xgqfrms 发布文章使用：只允许注册用户才可以访问！

原创文章，版权所有©️xgqfrms, 禁止转载 🈲️，侵权必究⚠️！

---