Change the names of all arrays within a complex nested structure containing multiple arrays

Question

Change the names of all arrays within a complex nested structure containing multiple arrays

I'm currently working on a recursive "massage" function that requires me to rename specific property keys. So far, I've attempted various recursive methods but haven't had much luck.

One task is to eliminate the word 'Array' from all arrays nested within a deeply nested object.

Here is an example input:

var data = {
  test: {
    testArray1: [
      {
        testArray2: [
          {
            sample: {
              testArray3: [],
            },
          },
        ],
      },
    ],
  },
};

The desired output should look like this:

var result = {
  test: {
    test1: [
      {
        test2: [
          {
            sample: {
              test3: [],
            },
          },
        ],
      },
    ],
  },
};

javascript arrays recursion

Answer 1

Answer №1

A recommended strategy for handling this issue (excluding recursion) involves first converting the JSON data into a string using JSON.stringify(), performing necessary operations with replace() on the resulting string, and then transforming it back to JSON format with JSON.parse(). Here's an example:

const input = {
  test: {testArray1: [
    {testArray2: [
      {sample: {testArray3: ["Array"],},},
    ],},
  ],},
};

let res = JSON.stringify(input).replace(/(Array)([^:]*):/g, "$2:");
res =  JSON.parse(res);
console.log(res);

Answer 2

A recommended strategy for handling this issue (excluding recursion) involves first converting the JSON data into a string using JSON.stringify(), performing necessary operations with replace() on the resulting string, and then transforming it back to JSON format with JSON.parse(). Here's an example:

const input = {
  test: {testArray1: [
    {testArray2: [
      {sample: {testArray3: ["Array"],},},
    ],},
  ],},
};

let res = JSON.stringify(input).replace(/(Array)([^:]*):/g, "$2:");
res =  JSON.parse(res);
console.log(res);

Answer 3

Answer №2

Below is a straightforward recursive method that should suit your needs:

function deleteWord(input, word = "Array") {

  if (Array.isArray(input)) {
    return input.map(obj => deleteWord(obj, word));
  } else if (typeof input == "object") {
    var result = {};
    Object.keys(input).forEach(key => {
        result[key.replace(word, "")] = deleteWord(input[key]);
    });
    return result;
  } else {
    return input;
  }

}

It's important to note that this solution may not be very reliable and could use up a lot of memory if dealing with a deeply nested object.

Answer 4

Below is a straightforward recursive method that should suit your needs:

function deleteWord(input, word = "Array") {

  if (Array.isArray(input)) {
    return input.map(obj => deleteWord(obj, word));
  } else if (typeof input == "object") {
    var result = {};
    Object.keys(input).forEach(key => {
        result[key.replace(word, "")] = deleteWord(input[key]);
    });
    return result;
  } else {
    return input;
  }

}

It's important to note that this solution may not be very reliable and could use up a lot of memory if dealing with a deeply nested object.

Change the names of all arrays within a complex nested structure containing multiple arrays

Answer №1

Answer №2

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