Angular 6：如何使用数组渲染Ag-grid rowData？

Question

{
  "People": [
    {
      "name": "Andrew Amernante",
      "rating": 3,

      "Description": "Gluten-free cray cardigan vegan. Lumbersexual pork belly blog, fanny pack put a bird on it selvage",
      "Likes": [
        "Dogs",
        "Long walks on the beach",
        "Chopin",
        "Tacos"
      ],
      "Dislikes": [
        "Birds",
        "Red things",
        "Danish food",
        "Dead Batteries"
      ]
    },
    {
      "name": "Frank Wang",
      "rating": 5,
      "img": "http://www.fillmurray.com/200/200",
      "Description": "Before errors, mails were only pressures. This is not to discredit the idea that a magic is the prose of an elizabeth. This could be, or perhaps some posit the outmost coil to be less than dedal. Some assert that those treatments are nothing more than carp.",
      "Likes": [
        "Frank",
        "Manchester United",
        "Football",
        "Programming"
      ],
      "Dislikes": [
        "Dogs",
        "Long walks on the beach",
        "Chopin",
        "Tacos"
      ]
    },
    {
      "name": "Sissi Chen",
      "rating": 5,

      "Description": "Aaah! Natural light! Get it off me! Get it off me! Oh, loneliness and cheeseburgers are a dangerous mix. D'oh. Here's to alcohol, the cause of — and solution to — all life's problems.",
      "Likes": [
        "Cats",
        "the beach",
        "Chopin",
        "Blue things"
      ],
      "Dislikes": [
        "Birds"
      ]
    },
    {
      "name": "Diego Garcia",
      "rating": 2,

      "Description": "Facts are meaningless. You could use facts to prove anything that's even remotely true! I prefer a vehicle that doesn't hurt Mother Earth. It's a go-cart, powered by my own sense of self-satisfaction. You don't win friends with salad.",
      "Likes": [
        "Talking Spanish",
        "Spanish food",
        "Spanish things",
        "Football"
      ],
      "Dislikes": [
        "Not talking spanish",
        "Chopin"
      ]
    },
    {
      "name": "Fuad Rashid",
      "rating": 4,

      "Description": "Gluten-free cray cardigan vegan. Lumbersexual pork belly blog, fanny pack put a bird on it selvage",
      "Likes": [
        "Dogs",
        "Long walks on the beach",
        "Chopin",
        "Tacos"
      ],
      "Dislikes": [
        "Birds",
        "Red things",
        "Danish food",
        "Dead Batteries"
      ]
    }
  ]
}

我必须使用 likes 和 dislikes 作为标题从上述JSON数据创建ag-grid表。我已经尝试过，但是无法在表中获得 rows 和 likes 和 dislikes 。

我正在使用以下代码：

this.likes.forEach(e=>{
    this.list[index] = {
        'Likes' : e,

    };
    index++
})
this.dislikes.forEach(e=>{
    this.list[index] = {
        'Dislikes' : e

    };
    index++;
});
this.rowData=this.list;
console.log(this.list);
this.rowData=this.list;

但是，我遇到以下错误：

  

错误TypeError：rowData.forEach不是函数

表应如下所示：