How to convert array string to attribute?

Question

I need to call JSON value by array value, how to do that?

var key = ['name','address'];

for(let i=0; i<key.length; i++){
   console.log(response.data.data.key[i]); // nothing happen
}

Could you post more of your code? There is no indication what `response` is, what it contains, where it gets initialized, or its possible structure. — user2340824, Apr 22 '19 at 07:05
response.data.data is json data, normally I call it like : response.data.data.name, but I want to call it by array value — Ashtav, Apr 22 '19 at 07:07

score 1 · Accepted Answer · answered Apr 22 '19 at 07:06

1

You are looking for bracket notation

var key = ['name','address'];

for(let i=0; i<key.length; i++){
   console.log(response.data.data[key[i]]); 
}

answered Apr 22 '19 at 07:06

baao

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Jack Bashford · Answer 2 · 2019-04-22T07:08:12.703

1

Use dynamic property notation:

var response = {
  data: {
    data: {
      name: "Jack",
      address: "Unknown"
    }
  }
};

var key = ['name', 'address'];

for (let i = 0; i < key.length; i++) {
  console.log(response.data.data[key[i]]);
}

edited Apr 22 '19 at 07:08

answered Apr 22 '19 at 07:06

Jack Bashford

43,180
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50
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Many years on stackoverflow make use code clairvoyants :-) – baao Apr 22 '19 at 07:07

score 0 · Answer 3 · answered Apr 22 '19 at 07:10

You can use forEach() to make a single liner code:

var response = {
  data: {
    data: {
      'name': 'someName',
      'address': 'someAddress',
      'age': 10
    }
  }
}
var key = ['name','address'];

key.forEach((i) => console.log(response.data.data[i]));

How to convert array string to attribute?

3 Answers3