javascript - 在Angular 7中并排合并两个数组

要并排合并两个数组，我按照以下过程进行操作，但我得到了



这是我的代码

    acs = [
    {
        "account": "Cash In Hand",
        "liabilities": 0,
        "assets": 8031597
    },
    {
        "account": "Tax Acs",
        "liabilities": 988363.72,
        "assets": 0.98
    },
    {
        "account": "Sundry Debtor",
        "liabilities": 0,
        "assets": 551
    },
    {
        "account": "Sundry Creditor",
        "liabilities": 0,
        "assets": 0
    }
];

acd: any;
acc: any;
newacc: any;

constructor() { }

ngOnInit() {
    this.acd = this.acs.filter(f => f.liabilities !== 0);
    this.acc = this.acs.filter(f => f.assets !== 0);

    const bigger = this.acd.length > this.acc.length ? this.acd.length : this.acc.length;

    this.newacc = [];
    for (let i = 0; i < bigger; i++) {
      if (this.acd.length > i) {
        this.newacc[i].account = this.acd[i].account;
        this.newacc[i].liabilities = this.acd[i].liabilities;
      }
      if (this.acc.length > i) {
        this.newacc[i].accounts = this.acc[i].account;
        this.newacc[i].assets = this.acc[i].assets;
      }
    }
  }

如果我这样添加this.newacc = [{}];，第二个if也会收到相同的错误，即this.newacc[i].accounts
我在这里犯了什么错？还是有最简单的方法将两个数组并排组合？这两个数组的长度无关，并且不进行任何连接。

最佳答案

您应该使用push方法。问题是您要使用C++语法添加元素。

 this.newacc[i].account = this.acd[i].account;

如前所述，可以通过传递所需对象作为参数来使用push方法。

newacc.push({account:acd[i].account, liabilities : acd[i].liabilities });

acs = [ { "account": "Cash In Hand", "liabilities": 0, "assets": 8031597 }, { "account": "Tax Acs", "liabilities": 988363.72, "assets": 0.98 }, { "account": "Sundry Debtor", "liabilities": 0, "assets": 551 }, { "account": "Sundry Creditor", "liabilities": 0, "assets": 0 } ];

acd = acs.filter(f => f.liabilities !== 0);
acc = acs.filter(f => f.assets !== 0);

const bigger = acd.length > acc.length ? acd.length : acc.length, newacc = [];
for (let i = 0; i < bigger; i++) {
  if (acd.length > i)
    newacc.push({account:acd[i].account, liabilities : acd[i].liabilities });
  if (acc.length > i)
    newacc.push({account:acc[i].account, assets : acc[i].assets });
}
console.log(newacc);