javascript替代Array.prototype.some操作

Array.prototype.some在低版本浏览器好像不太兼容，下列是替代方法

一、 for 循环

const initIds: any[] = [1,2,3];
const Ids: any[] = [2,3,4];
const delIds: any[] = [];
const addIds: any[] = [];
Ids.forEach((id: any) => {
  let flag = false;
  for (let initId of  initIds) {
    flag = id === initId;
    if (flag) {
      break;
    }
  }
  if (!flag) {
    addIds.push(id);
  }
});
initIds.forEach((initId: any) => {
  let flag = false;
  for (let id of  Ids) {
    flag = id === initId;
    if (flag) {
      break;
    }
  }
  if (!flag) {
    delIds.push(initId);
  }
});

二、用Array.prototype.filter实现

const arr = ary.filter((item) => { //... });
const flag = arr.length > 0;

三、find

const id = 1;
const flag = ary.find((item) => item.Id = id) > -1;