Rearranging and Matching Array Elements

I am trying to simplify an array with Javascript

[{
{name: orange,
quanity: 1},
{name: apple,
quanity: 3}
}]

I want

[{
orange:1,
apple: 3
}]

I have tried

const keys = flat.map(item => {
            item.name = item.quanity
        })

But I get

[ undefined, undefined ]

Thanks!

>Solution :

You can return the key-value pairs you want in the final object from the map callback, then use Object.fromEntries to create the combined object.

let arr=[{name:"orange",quanity:1},{name:"apple",quanity:3}];
let res = [Object.fromEntries(arr.map(o => [o.name, o.quanity]))];
console.log(res);