Quickly creating a Map of objects from an Array of objects using a specified object key

Question

I have an array of uniform objects:

var objects = [{
    id: 1,
    name: "one"
}, {
    id: 2,
    name: "two"
}];

And I'm converting these to a Map by using the id property of each object as Map keys:

var map = new Map();

objects.forEach(obj => map.set(obj.id, obj));

However, I'd like to do the conversion without:

1. having to manually create a new map object myself, and
2. having to manually iterate over the array and calling set myself

Additionally, I don't feel I should be making a utility function for this presumably native functionality.

Note: search queries for js array to map, or js convert array to map, or js map from array are all bloated with stone-age-era answers with Object, or solutions with a utility function. I'm looking for the native approach here.

I.e. I'm looking for the native JavaScript equivalent of mapping an array to a dictionary in C#, for example.

var map = list.ToDictionary(item => item.id);

This is so straightforward and convenient, yet interestingly enough, there is no Map.from in JavaScript (even though there is an Array.from).

Answer 1

I did my research while writing up the question, and I feel I should leave the solution here, as its possible practical applications are many.

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I'm looking for the native JavaScript equivalent of mapping an array to a dictionary in C#

Considering a Map can be constructed with an iterable of 2-element arrays, where the first element of each inner array is used as the key, and the second element is used as a value, I believe this is the native JS equivalent, also the shortest:

new Map(objects.map(obj => [obj.id, obj]));

Live demo