判断数组中的对象属性值是否存在重复

const obj = arr?.reduce((pre, cur) => {if (pre.hasOwnProperty(cur.xxx)) {pre[cur.xxx]++;} else {pre[cur.xxx] = 1;}return pre;}, {});const flag = Object.values(obj).some((n) => Number(n) > 1);if (flag) {message.warning('xxx重复，请修改');return false;}