hawx1993 · January 5, 2022 08:11
diff --git a/arrayUnique.ts b/arrayUnique.ts
 // 数组去重对象
 var arr = [
  { id: 1, city: "南京" },
  { id: 2, city: "南京" },
  { id: 3, city: "杭州" },
  { id: 4, city: "广州" },
 ];

 var newArr = arr.reduce((prev, cur) => {
  obj[cur.city] ? "" : (obj[cur.city] = true && prev.push(cur));
  return prev;
 }, []);
	// 数组去重对象
	var arr = [
	{ id: 1, city: "南京" },
	{ id: 2, city: "南京" },
	{ id: 3, city: "杭州" },
	{ id: 4, city: "广州" },
	];

	var newArr = arr.reduce((prev, cur) => {
	obj[cur.city] ? "" : (obj[cur.city] = true && prev.push(cur));
	return prev;
	}, []);
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