如何仅将 JSON 文件中的特定属性解析为数组

Question

I have this JSON array:

{
  "data": [
    {
      "id": 6,
      "pnome": "dasda",
      "unome": "dad",
      "avatar": 1,
      "email": "d",
      "pass": "password",
      "ponto": 0
    },
    {
      "id": 3,
      "pnome": "Enguias",
      "unome": "Enguias outra vez",
      "avatar": 10,
      "email": "enguias@enguias.enguias",
      "pass": "enguias",
      "ponto": 0
    },
    {
      "id": 2,
      "pnome": "André",
      "unome": "Marques",
      "avatar": 1,
      "email": "aglmarque@gmail.com",
      "pass": "yet1",
      "ponto": 0
    }
  ]
}

And i'm putting it into an array with axios, like this:

    axios.get(my_url_api)
    .then((res)=>{
        const txt = JSON.stringify(res.data.data);
        const users = JSON.parse(txt)
    })

Which makes the users array have all the info in the JSON file. How can I make it so that I only pass specific attributes like email and pass? It would look like this:

{
  "data": [
    {
      "email": "d",
      "pass": "password"
    },
    {
      "email": "enguias@enguias.enguias",
      "pass": "enguias"
    },
    {
      "email": "aglmarque@gmail.com",
      "pass": "yet1"
    }
  ]
}

Answer 1

You can use Array.map() function to remove the unnecessary fields like following example:

 let res = { "data": [ { "id": 6, "pnome": "dasda", "unome": "dad", "avatar": 1, "email": "d", "pass": "password", "ponto": 0 }, { "id": 3, "pnome": "Enguias", "unome": "Enguias outra vez", "avatar": 10, "email": "enguias@enguias.enguias", "pass": "enguias", "ponto": 0 }, { "id": 2, "pnome": "André", "unome": "Marques", "avatar": 1, "email": "aglmarque@gmail.com", "pass": "yet1", "ponto": 0 } ] } res.data = res.data.map(item => { return { email: item.email, pass: item.pass }; }); console.log(res);