按键值对分组，同时使用ramda合并重复项

Question

我有一系列表单错误，如下所示：

[
  {
    "path": "email",
    "message": "email must be at least 10 characters",
  },
  {
    "path": "email",
    "message": "email must be a valid email",
  },
  {
    "path": "password",
    "message": "password must be at least 8 characters",
  }
]

需要对形状进行转换，使其符合表单的错误API。 我想做的是使用ramda对其进行转换，使其最终结果如下：

{
  email: ["email must be at least 10 characters", "email must be a valid email"],
  password: ["password must be at least 8 characters"]
}

ramda函数用于实现此目的的最佳选择是什么？

Answer 1

使用R.pipe （或R.compose ）创建一个按path属性（通过R.prop ）分组的函数，然后在R.map使用R.pluck获取每个组中的message属性：

 const { pipe, groupBy, prop, map, pluck } = R const fn = pipe( groupBy(prop('path')), map(pluck('message')) ) const data = [{"path":"email","message":"email must be at least 10 characters"},{"path":"email","message":"email must be a valid email"},{"path":"password","message":"password must be at least 8 characters"}] const result = fn(data) console.log(result) 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.js"></script>