javascript - 自动生成文档的随机测试数据以播种 MongoDB 数据库

Question

我正在使用 JSON 生成器 https://next.json-generator.com为我的 MongoDB 数据库提供种子。我发现很难从预定义的组中生成一组随机颜色(从一到六种)。

我已经成功生成了除颜色之外的所有其他属性值。我需要 availableColors 键从预定义的六种颜色中生成随机可变数量的颜色:“蓝色”、“棕色”、“绿色”、“白色”、“黄色”、“灰色”。

这里是在线生成器的 URL，可以对其进行实时编辑:https://next.json-generator.com/E1g60a1pL

这是代码:

[
  {
    'repeat(5, 10)': {
      id: '{{objectId()}}',
      name: '{{firstName()}}',
      price: '{{floating(5, 4000, 2, "$0,0.00")}}',
      availableColors: (colors) => {
               var condition = '{{integer(1, 6)}}';
               var color = [];
               for (j = 0; j < condition+1; j++)
               {color [j] = '{{random("blue", "brown", "green",  "white", "yellow", "gray")}}';}
               let unique_array = [];
               for(let i = 0;i < color.length; i++) {
                   if(unique_array.indexOf(color[i]) == -1){
                      unique_array.push(color[i]);
                }
               }
               return unique_array;
},
      weight: '{{floating(1, 4000, 2, "0.00")}}',
      inStock: '{{integer(0, 2000)}}'
    }
  }
]

这是我得到的结果:

[
  {
    "id": "5ce82b1302c9777aac5fd681",
    "name": "Blake",
    "price": "$389.53",
    "availableColors": [],
    "weight": "3753.22",
    "inStock": 449
  },
  {
    "id": "5ce82b137ab9fe24eda22714",
    "name": "Felicia",
    "price": "$3,190.01",
    "availableColors": [],
    "weight": "3797.51",
    "inStock": 1288
  },
  {
    "id": "5ce82b135414eb7550aee368",
    "name": "Bettye",
    "price": "$227.41",
    "availableColors": [],
    "weight": "2182.52",
    "inStock": 1288
  },
  {
    "id": "5ce82b13f751e63a8506fbf2",
    "name": "Mullen",
    "price": "$3,306.81",
    "availableColors": [],
    "weight": "694.51",
    "inStock": 821
  },
  {
    "id": "5ce82b130544c7c08086a6bc",
    "name": "Angelita",
    "price": "$734.90",
    "availableColors": [],
    "weight": "3.44",
    "inStock": 226
  },
  {
    "id": "5ce82b130d9e2fc4c2a21e22",
    "name": "Mcknight",
    "price": "$3,582.76",
    "availableColors": [],
    "weight": "1183.82",
    "inStock": 1917
  },
  {
    "id": "5ce82b13fb509ee9c384a096",
    "name": "Nannie",
    "price": "$3,479.29",
    "availableColors": [],
    "weight": "754.85",
    "inStock": 716
  },
  {
    "id": "5ce82b13881cb29ec7a1772b",
    "name": "Sutton",
    "price": "$1,726.83",
    "availableColors": [],
    "weight": "1382.76",
    "inStock": 1911
  },
  {
    "id": "5ce82b1386ad13bffcf0923b",
    "name": "Maria",
    "price": "$1,679.58",
    "availableColors": [],
    "weight": "1106.28",
    "inStock": 5
  },
  {
    "id": "5ce82b13fccd87dbe6451971",
    "name": "Noble",
    "price": "$309.25",
    "availableColors": [],
    "weight": "1657.83",
    "inStock": 235
  }
]

我希望任何文档的“availableColors”都是一到六种预定义颜色的数组。有什么想法吗？

Answer 1

您需要使用 Math.random 创建一个纯 JavaScript 循环我已经更新了链接: https://next.json-generator.com/EJXO4xfaU