JavaScript数组-从平面到分层

Question

在数组中，如果元素的item_parent ===元素的item_id，我想将其作为子元素添加到该元素；

因此，“高级项目经理”以“一般条件”为子，“一般条件”以“一般材料”为子...

[
  {
    "cost_code": "007202",
    "item_id": "15531666136289",
    "item_parent": "15531666136277",
    "name": "Sr. Project Manager"
  },
  {
    "cost_code": "007200",
    "item_id": "15531666136277",
    "item_parent": "15531666136241",
    "name": "General Conditions"
  },
  {
    "cost_code": "000000",
    "item_id": "15531666136241",
    "item_parent": "0",
    "name": "General Stuff"
  }
]