Object Keys

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Easy

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

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

TypeScript•UTF-8

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Easy

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

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

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.