Retrieving information from a JSON file using JavaScript

Question

Retrieving information from a JSON file using JavaScript

My code snippet looks like this:

{ 
"badge_sets":{
   "1979-revolution_1":{
      "versions":{
         "1":{
            "image_url":"https://static-cdn.jtvnw.net/badges/v1/7833bb6e-d20d-48ff-a58d-67fe827a4f84/1",
         }
      }
   },
   "60-seconds_1":{
      "versions":{
         "1":{
            "image_url":"https://static-cdn.jtvnw.net/badges/v1/1e7252f9-7e80-4d3d-ae42-319f030cca99/1",
         }
      }
   }
}}

I am attempting to achieve a similar result using JavaScript, however, I am struggling with the implementation. Can anyone provide assistance?

1979-revolution_1;https://static-cdn.jtvnw.net/badges/v1/7833bb6e-d20d-48ff-a58d-67fe827a4f84/1
60-seconds_1;https://static-cdn.jtvnw.net/badges/v1/1e7252f9-7e80-4d3d-ae42-319f030cca99/1

javascript json

Answer 1

Answer №1

To access the key and value of the nested badge_sets object, you can utilize ES6's Object.entries(). Remember that Object.entries() returns a [key, value] tuple, allowing for argument destructuring to assign those variables.

The image URL can be retrieved using a mix of dot and bracket notation. Then, with the use of ES6 template literals, you can piece together all the components to achieve the desired format.

Object.entries(data.badge_sets).map(([key, value]) => {
  return `${key}:${value.versions['1'].image_url}`;
});

It's important to note that this approach will yield an array of formatted strings.

For a more concise one-liner solution, you can take advantage of implicit returns from ES6's arrow functions. This results in a more succinct code, albeit potentially sacrificing readability for brevity.

const formattedData = Object.entries(data.badge_sets).map(([key, value]) => `${key}:${value.versions['1'].image_url}`);

Check out the proof-of-concept example below:

const data = {
  "badge_sets": {
    "1979-revolution_1": {
      "versions": {
        "1": {
          "image_url": "https://static-cdn.jtvnw.net/badges/v1/7833bb6e-d20d-48ff-a58d-67fe827a4f84/1",
        }
      }
    },
    "60-seconds_1": {
      "versions": {
        "1": {
          "image_url": "https://static-cdn.jtvnw.net/badges/v1/1e7252f9-7e80-4d3d-ae42-319f030cca99/1",
        }
      }
    }
  }
};

const formattedData = Object.entries(data.badge_sets).map(([key, value]) => `${key}:${value.versions['1'].image_url}`);
console.log(formattedData);

Answer 2

To access the key and value of the nested badge_sets object, you can utilize ES6's Object.entries(). Remember that Object.entries() returns a [key, value] tuple, allowing for argument destructuring to assign those variables.

The image URL can be retrieved using a mix of dot and bracket notation. Then, with the use of ES6 template literals, you can piece together all the components to achieve the desired format.

Object.entries(data.badge_sets).map(([key, value]) => {
  return `${key}:${value.versions['1'].image_url}`;
});

It's important to note that this approach will yield an array of formatted strings.

For a more concise one-liner solution, you can take advantage of implicit returns from ES6's arrow functions. This results in a more succinct code, albeit potentially sacrificing readability for brevity.

const formattedData = Object.entries(data.badge_sets).map(([key, value]) => `${key}:${value.versions['1'].image_url}`);

Check out the proof-of-concept example below:

const data = {
  "badge_sets": {
    "1979-revolution_1": {
      "versions": {
        "1": {
          "image_url": "https://static-cdn.jtvnw.net/badges/v1/7833bb6e-d20d-48ff-a58d-67fe827a4f84/1",
        }
      }
    },
    "60-seconds_1": {
      "versions": {
        "1": {
          "image_url": "https://static-cdn.jtvnw.net/badges/v1/1e7252f9-7e80-4d3d-ae42-319f030cca99/1",
        }
      }
    }
  }
};

const formattedData = Object.entries(data.badge_sets).map(([key, value]) => `${key}:${value.versions['1'].image_url}`);
console.log(formattedData);

Retrieving information from a JSON file using JavaScript

Answer №1

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