一个对象怎么删除等于0的key值

Question

let arr = [{allotQuantity:0,a:1},{allotQuantity:1,a:2}]

如果allotQuantity等于0就删除这条数组对象，该怎么写？

Answer 1

arr.map(i => {
    i.allotQuantity == 0 ? delete i.allotQuantity : null
    return i
})

??? 到底删对象还是对象的key?

Answer 2

let newArr = arr.filter((item,key) => {
   return item.allotQuantity != 0
})
console.log(newArr)

Answer 3

const arr = [{ allotQuantity: 0, a: 1 }, { allotQuantity: 1, a: 2 }];
const result = arr.filter(item => item.allotQuantity !== 0);
// [
//   {
//     "allotQuantity": 1,
//     "a": 2
//   }
// ]