Why does keys() not work with dynamic inputs?

[niksrid]

Hello,

I was just wondering why does the keys function not work with dynamic names passed to it?

Is this because of an inherent TypeScript limitation or is it a transformation function limitation?

For reference, this is what my code roughly looks like right now but does not seem to work
const instances = ['a','b','c'];
for(let instance of instances){
let instanceKeys = keys<NexusPrismaTypes[instance]>();
console.log(instanceKeys) //Returns an empty array
}

[kimamula]

I think you just missed typeof. This should work:

const instances = ['a','b','c'];
for(let instance of instances){
  // add typeof in front of instance
  let instanceKeys = keys<NexusPrismaTypes[typeof instance]>();
  console.log(instanceKeys);
}

[kimamula]

Probably you also need as const.

// add 'as const'
const instances = ['a','b','c'] as const;
for(let instance of instances){
  // add typeof in front of instance
  let instanceKeys = keys<NexusPrismaTypes[typeof instance]>();
  console.log(instanceKeys);
}