在javascript中按键过滤

Question

我想在javascript中按键过滤。我有一个 ajax 函数，在传递 id 时，将导致obj1一个接一个的成功。我想通过合并所有结果key并推送到单个对象。如何在 javascript 中执行以下操作。var id =["trans", "fund"]setTimeout(()=>{      id.map((e)=>this.static(e))    }, 2000)static(id){var li = $.ajax({           url: "/en",          method: 'get',          global: false,          async: false,          data: {            providers: id          },          success: function (data) {            return data;          }        }).responseText;  var obj1=data; //I need to combine and store data in expected output format}//on first callvar obj1={  country: "SG",  trans: [{    rate: 20,    members: 100  }]}//on second callvar obj1={  country: "TH",  fund: [{    rate: 20,    members: 100  }]}预期输出：var result ={  trans: [{    rate: 20,    members: 100  }],  fund: [{    rate: 20,    members: 100  }]}

Answer 1

尝试做这样的事情。我假设你的钥匙是固定的。

  var output = {};

  var id = ["trans", "fund"]

  //on first call

  var obj1 = {

    country: "SG",

    trans: [{

      rate: 20,

      members: 100

    }]

  }

  //on second call

  var obj2 = {

    country: "TH",

    fund: [{

      rate: 20,

      members: 100

    }]

  }

  function getObj(selectedId) {

    console.log(id); // global variable.

    if(!id) return;

    id.forEach(x => {

      let obj1Key = obj1[x];

      if (obj1Key) output[x] = obj1Key;

      let obj2Key = obj2[x];

      if (obj2Key) output[x] = obj2Key;

    })

   console.log('output object', output);

   console.log('JSON:', JSON.stringify(output));

  }

Answer 2

您可以尝试如下，如果结果已经有值，这将合并值

//

 var id =["trans", "fund"];

 var result = {};

 function getObj(obj){

   id.map(val => {

      if(result[val]) { result[val] = [...result[val], ...obj[val]]}

      else result[val] = obj[val]

   })

 }

//on first call

    var obj1={

      country: "SG",

      trans: [{

        rate: 20,

        members: 100

      }]

    }

    getObj(obj1)

/*

{

  trans: [{

    rate: 20,

    members: 100

  }]

}

*/

    //on second call

    var obj1={

      country: "TH",

      fund: [{

        rate: 20,

        members: 100

      }]

    }

getObj(obj2)

/*

{

  trans: [{

    rate: 20,

    members: 100

   }],

   fund: [{

     rate: 20,

     members: 100

   }]

}

*/

Answer 3

试试这个：

var id =["trans", "fund"];

var result = {};

//on first call

var obj1={

    country: "SG",

    trans: [{

        rate: 20,

        members: 100

    }]

}

result = getObj(result,obj1);

//on second call

var obj1={

    country: "TH",

    fund: [{

        rate: 20,

        members: 100

    }]

}

result = getObj(result,obj1);

console.log(result);

function getObj(result,obj){

    for (let i = 0; i < id.length; i++) {

        if (obj[id[i]]) {

            result[id[i]] =  obj[id[i]];

            return result;

        }

    }

    return result;

}