对数组内的对象去重的方法

<script>
  const Obj1 = [
  { a: 1, b: 2 },
  { a: 3, b: 4 },
  { a: 5, b: 6 },
  { a: 3, b: 4 }
]
function reduceDuplicate(Obj) {
  const Equityobj = {}
  const Result = Obj.reduce((cur, next) => {
    const a = Equityobj[next.a] ? '' : Equityobj[next.a] = true && cur.push(next)
    return cur
  }, [])
  return Result
}

console.log(reduceDuplicate(Obj1))
</script>