Map 两个 arrays typescript

Question

我有两个 arrays 第一个数组

{
    "heart_rate": 27,
    "height": 82,
    "weight":78
}

第二个数组

[
    {
    "id": "heart_rate",
    "description": "le ratio coeur",
    "label":"ratio coeur"
    },
    {
        "id": "height",
        "label": "taille",
        "description": "la taille"
    },
    {
        "id": "weight",
        "label": "poids",
        "description": "le poids"
    }
]

我可以使用map function 来匹配第一个数组的键和第二个数组的 ID 以获得这样的结果数组吗

[
{
 "label": "poids",
 "value": 82,
 "description": "le poids"
},
{
 "label": "taille",
 "value": 78,
 "description": "la taille"
},
{
 "label": "ratio coeur",
 "value": 27,
 "description": "le ratio coeur"
},
]

Answer 1

MGX是正确的。 您的第一项不是数组，而是 object。

这是你必须做的，让它与 object 一起工作。

const valueObject = {
    "heart_rate": 27,
    "height": 82,
    "weight":78
};

const array = [
    {
        "id": "heart_rate",
        "description": "le ratio coeur",
        "label":"ratio coeur"
    },
    {
        "id": "height",
        "label": "taille",
        "description": "la taille"
    },
    {
        "id": "weight",
        "label": "poids",
        "description": "le poids"
    }
]

const keys = Object.keys(valueObject);
const values = Object.values(valueObject);

const result = array.map((item) => { 
  return {
    label: item.label,
    value: values[keys.findIndex(key => key === item.id)],
    description: item.description,
  };
});

或者，您可以将valueObject转换为Map以更轻松地获得结果：

const map = new Map(Object.entries(valueObject));

const result = array.map((item) => { 
  return {
    label: item.label,
    value: map.get(item.id),
    description: item.description,
  };
});