如何从未命名的 JSON 对象数组中获取数据

Question

I used fetch method to get data from JSON into Object array and now I want to get only one value from object, but my array doesn't have name.

JS:

async function s_data() {
  let r = await fetch("terms.json");
  let d = await r.json();
  return d;
}

Array looks like

0: Object { TERM: "x", PRIORITY: "1" }
​​
1: Object { TERM: "y", PRIORITY: "0" }
​​
2: Object { TERM: "z", PRIORITY: "0" }
​​

And i want to paste only terms into Array.

Answer 1

For example:

async function s_data() {
  let r = await fetch("terms.json");
  let d = await r.json();
  let terms = d.map(item => item.TERM);
  return terms;
}

Or:

async function s_data() {
  let r = await fetch("terms.json");
  let d = await r.json();
  let terms = d.reduce((acc, item) => {acc.push(item.TERM); return acc}, []);
  return terms;
}

Array.prototype.map()

Array.prototype.reduce()