A versatile function that can process any data type without losing its structural details

Is it possible to create a function that accepts any type as an argument while still retaining the original type information of the input?

const preserveType = (input: any) => input // using 'any' for flexibility

const data = {
  foo: 'bar',
  john:'doe'
}

const output = preserveType(data)
// The output now becomes of type 'any' and loses the original shape information of the input

Answer №1

To make use of generics, you can follow this approach:

const preserveTypeInfo = <T>(t: T) => t;

const dataObject = {
  name: 'Alice',
  age: 30
}

const preservedResult = preserveTypeInfo(dataObject)
// The preserved result maintains the same type as the input object

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