数组拆分问题，请教

Question

一个数组arr = [{"id":1393,"sort":3},{"id":1395,"sort":4},{"id":1397,"sort":5}]根据sort=4拆分成两个数组arr1 = [{"id":1393,"sort":3},{"id":1397,"sort":5}];arr2=[{"id":1395,"sort":4}]

Answer 1

arr1 = arr.filter((elem,index)=> elem.sort != 4)
arr2 = arr.filter((elem,index)=> elem.sort == 4)