CODEWITHSUNDEEP
javascriptjson
Jim
Jim

Reputation: 3

Iterating Through Json with different keys

How would I go about looping through this JSON object to find a specific "id" key, and give back the name "outer key"? Sorry, I'm not too familiar with the proper name.

ie, search for the id '24', and get 'Jax' in Javascript?

{  
  "type":"champion",
  "version":"7.2.1",
  "data":{  
    "Jax":{  
      "id":24,
      "key":"Jax",
      "name":"Jax",
      "title":"Grandmaster at Arms",
      "tags":[  
        "Fighter",
        "Assassin"
      ]
    },
    "Sona":{  
      "id":37,
      "key":"Sona",
      "name":"Sona",
      "title":"Maven of the Strings",
      "tags":[  
        "Support",
        "Mage"
      ]
    }
  }
}

Upvotes: 0

Views: 97

Answers (1)

guest271314
guest271314

Reputation: 1

You can use for..of loop, Object.entries() to iterate property names and values of an object; if value id matches 24, set variable to property name of that object; break loop or return property from within if statement.

function getData(json, _id) {
  let prop = `${_id} not found`;
  for (let [key, value] of Object.entries(json)) {
    let {id} = value;
    if (id && id === _id) {
      return key
    }
  }
  return prop;
}

let res = getData(json.data, 24);

Upvotes: 1

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