Create a fresh keyValuePair instance and incorporate a pre-existing dictionary in Type Script

I have created a custom dictionary class, but I am uncertain on how to define the Dictionary attribute. There's a JSON file named Switches:

{"ShowImage": true,"ShowText": false, "showButton", true}

import * as switches from '../switches.json';

export class DictionaryClass{
    Dictionary?: { [key: string]: boolean };
}

export function getDictionary() {

   const dictionaryClass = new DictionaryClass();
   dictionaryClass.Dictionary = { [key: string]: boolean };
    for (let entry in switches) {
        dictionaryClass.Dictionary[entry] = switches[entry];
    }
return dictionaryClass;

}

In this scenario, I need guidance on properly instantiating the dictionary. Here is one unsuccessful attempt:

const dictionaryClass = new DictionaryClass();
dictionaryClass.Dictionary = { [key: string]: boolean };

I also tried the following approach, which also didn't work:

  const dictionaryClass = new DictionaryClass();
  dictionaryClass.Dictionary = switches;

Can someone advise me on the correct way to instantiate it? Additionally, instead of iterating through the JSON dictionary, is there a method to append the entire JSON dictionary to the dictionary object?

Answer №1

In all honesty, there really isn't a need for the use of a class in this scenario since the class itself doesn't actually serve any purpose.

What would be more appropriate is to utilize a type that outlines the structure of a dictionary, similar to what you already have here:

type BooleanDictionary = { [key: string]: boolean }

All the extra elements included here are superfluous because the JSON data naturally lines up with that type by itself! This illustrates the advantage of creating code that depends on types and interfaces rather than specific classes.

Try it out in the Playground

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