Retrieve Key From an Object

Question

How would I write a function that takes an object, and a string of the name of a key in that object and return the value of that key?

For example:

retrieveKey({name: 'Joel'}, 'name') // returns 'Joel'

retrieveKey({password: 'Fruit!'}, 'password') // returns 'Fruit!'

retrieveKey({name: 'Joel'}, 'age') // returns undefined

Answer 1

Is this what you want?

let person1 = {name: "Joe", age: 18}

function getval(obj, key) {console.log(obj[key])}

getval(person1, "age") //returns 18