retrieve an object with enum keys that are indexed

Question

retrieve an object with enum keys that are indexed

I am faced with a situation where I have a collection of interdependent elements, each identified by a unique code (enumeration). My goal is to retrieve the list of elements that depend on a specific element, and then be able to reference them using myElements[anElementCode]:

enum Code {
  A = 'A',
  B = 'B',
  C = 'C',
  D = 'D',
}

function main() {
  let myElements = [
    { Code.C: [Code.A, Code.B] },
    { Code.D: [Code.B] }
  ]
  console.log(`The Elements that depend on C are: ${myElements[Code.C]}`); 
}

I want to be able to access the list [Code.A, Code.B] using myElements[Code.C]

Although this code doesn't currently work as intended, I am curious if there is a workaround to achieve the desired functionality?

javascript typescript

Answer 1

Answer №1

By setting myElements as an array, you are actually in need of a dictionary with square brackets for dynamically defining keys. Here's the corrected version:

function main() {
    let myElements = {
        [Code.C]: [Code.A, Code.B],
        [Code.D]: [Code.B]
    };
    console.log(`The Elements that depend on C are: ${myElements[Code.C]}`); 
}

Try it out here

Answer 2

By setting myElements as an array, you are actually in need of a dictionary with square brackets for dynamically defining keys. Here's the corrected version:

function main() {
    let myElements = {
        [Code.C]: [Code.A, Code.B],
        [Code.D]: [Code.B]
    };
    console.log(`The Elements that depend on C are: ${myElements[Code.C]}`); 
}

Try it out here

retrieve an object with enum keys that are indexed

Answer №1

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