Object Keys

Easy

Type the function so that key can only be a key of obj.

const getObjField = (obj, key) => {
  return obj[key]
}

Examples:

Input 1: getObjField({ name: "Nik" }, "name")
Output 1: string
Input 2: getObjField({ age: 25 }, "age")
Output 2: number
Output
Run your code to see results.