for我有一個(gè)函數(shù)，它接受一個(gè)對(duì)象作為道具，需要使用循環(huán)向它添加數(shù)組。我的問(wèn)題是，它僅在調(diào)用時(shí)添加單個(gè)數(shù)組時(shí)才有效。如果要添加多個(gè)數(shù)組，我會(huì)收到錯(cuò)誤linkLineItems.push is not a function，但我認(rèn)為.push可以用于將數(shù)組添加到對(duì)象。這是功能：function PrepareSuccessorActivityLinkData(data, existingLinks, linkSetter) {  for (let [key, value] of Object.entries(data)) {    let linkLineItems;    let linkLineItem;    if (data.activitiesafter[0] != "DEFAULT") {      for (var i = 0; i < data.activitiesafter.length; i++) {        linkLineItem = {          source: data.itemname,          target: data.activitiesafter[i],          type: "activity-activity-after"        };        if (!linkLineItems) {          linkLineItems = linkLineItem;        } else {          linkLineItems.push(linkLineItem);        }      }    } else {      continue;    }    return linkSetter(linkData => [...existingLinks, linkLineItems]);  }}有關(guān)如何將多個(gè)數(shù)組添加到對(duì)象的任何幫助？existingLinks編輯#1：我嘗試向其中添加項(xiàng)目的 or 對(duì)象的示例數(shù)據(jù)var linksData = [ {"source": "Do Something", "target": "My Document", "type": "Activity Output"}, {"source": "My Document", "target": "Operator", "type": "Object Responsible"}, {"source": "Operator", "target": "Do Something", "type": "Role Activity"}];編輯#2：傳遞給函數(shù)的樣本數(shù)據(jù)為data[{ itemname: "Hello World",  itemtype: "activity",  activitiesafter: ["Do Stuff", "Do Other Stuff"]}]