Navigating JSON data along diverging paths

Question

Navigating JSON data along diverging paths

Greetings everyone,

I am interested in creating a unique JSON script that has the capability for objects to either retrieve a value or navigate through a data path.

For instance:

{
  "A" : {
    "B" : "123"
  }
}

In the given example, when I access the value of A.B, it returns 123. However, I also want A to possess its own distinct value, such as "XYZ".

Therefore, when I inquire about what A is, it should return "XYZ", and if I ask about A.B, it should return "123".

I hope this explanation is clear; typically, JSON operates on a singular path, yet I desire the ability to traverse the path and allocate values to individual nodes. It's akin to each node having both a value and relationships with children and parents.

Any insights into this concept would be highly appreciated.

javascript c#json

Answer 1

Answer №1

You have the ability to create a custom function by utilizing the reduce() method in order to pass nested keys as a string.

const data = {"A": {"B": "123"}}

const getPath = (path, obj) => {
  return path.split('.').reduce(function(r, e, i, arr) {
    return r[e] || (arr[i + 1] ? {} : undefined)
  }, obj)
}

console.log(getPath('A.B', data))
console.log(getPath('A', data))
console.log(getPath('A.C', data))

If your intention is to always retrieve the last found value in the path, you can opt for this alternative approach.

const data = {
  "A": {
    "B": "123",
    "C": {"D": 2}
  }
}

const getPath = (path, obj) => {
  return path.split('.').reduce((r, e) => (r[e] || r ), obj)
}

console.log(getPath('A.B', data))
console.log(getPath('A.C.F.G', data))
console.log(getPath('A.B.Q', data))

Answer 2

You have the ability to create a custom function by utilizing the reduce() method in order to pass nested keys as a string.

const data = {"A": {"B": "123"}}

const getPath = (path, obj) => {
  return path.split('.').reduce(function(r, e, i, arr) {
    return r[e] || (arr[i + 1] ? {} : undefined)
  }, obj)
}

console.log(getPath('A.B', data))
console.log(getPath('A', data))
console.log(getPath('A.C', data))

If your intention is to always retrieve the last found value in the path, you can opt for this alternative approach.

const data = {
  "A": {
    "B": "123",
    "C": {"D": 2}
  }
}

const getPath = (path, obj) => {
  return path.split('.').reduce((r, e) => (r[e] || r ), obj)
}

console.log(getPath('A.B', data))
console.log(getPath('A.C.F.G', data))
console.log(getPath('A.B.Q', data))

Answer 3

Answer №2

It is not possible to assign two different values to the same object property. However, you can achieve a similar functionality by structuring your code like this:

{
  "A" : {
    "B" : "123",
    "value" : "XYZ"
  }
}

Accessing A.value will return XYZ and A.B will return 123

Edit:

If you define A as a function that returns the desired value, you can then add properties to A. Nevertheless, it is generally considered bad practice:

let A = function () {
  return 'XYZ';
}

A.B = '123';

let obj = {
  A
};

console.log(A()); // XYZ
console.log(A.B); // 123

Answer 4

It is not possible to assign two different values to the same object property. However, you can achieve a similar functionality by structuring your code like this:

{
  "A" : {
    "B" : "123",
    "value" : "XYZ"
  }
}

Accessing A.value will return XYZ and A.B will return 123

Edit:

If you define A as a function that returns the desired value, you can then add properties to A. Nevertheless, it is generally considered bad practice:

let A = function () {
  return 'XYZ';
}

A.B = '123';

let obj = {
  A
};

console.log(A()); // XYZ
console.log(A.B); // 123

Answer 5

Answer №3

JSON is short for JavaScript Object Notation, which means that JSON represents an object in JavaScript. Each attribute of an object can only have one value. Here's an example:

var obj = { "key1": { "nestedKey": "value"}

This creates an object like { key1: { nestedKey: value}. So, when you access the values, it would look like this:

console.log(obj.key1) // {nestedKey: value}
console.log(obj.key1.nestedKey) // value

Unfortunately, trying to assign multiple values to a single attribute is not feasible in JSON.

https://www.w3schools.com/js/js_json_intro.asp

Answer 6

JSON is short for JavaScript Object Notation, which means that JSON represents an object in JavaScript. Each attribute of an object can only have one value. Here's an example:

var obj = { "key1": { "nestedKey": "value"}

This creates an object like { key1: { nestedKey: value}. So, when you access the values, it would look like this:

console.log(obj.key1) // {nestedKey: value}
console.log(obj.key1.nestedKey) // value

Unfortunately, trying to assign multiple values to a single attribute is not feasible in JSON.

https://www.w3schools.com/js/js_json_intro.asp

Answer 7

Answer №4

It appears there may be some confusion regarding the issue at hand. It is essential to determine the proper logic for obtaining the JSON string before making the request or processing the response. Implementing multiple diverging logical paths could lead to potential complications and should be avoided.

Answer 8

It appears there may be some confusion regarding the issue at hand. It is essential to determine the proper logic for obtaining the JSON string before making the request or processing the response. Implementing multiple diverging logical paths could lead to potential complications and should be avoided.

Navigating JSON data along diverging paths

Answer №1

Answer №2

Answer №3

Answer №4

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