How to conditionally add a property to an object, using an object literal, only when its value is defined?

conditional-add-property.js

let result;

let value;
result = {
  value
};

// how to avoid the following result, adding a property to an object
// if it's value is undefined?
result;

// by using if block
value = undefined;
result = {};

if (typeof value !== "undefined") {
  result.value = value;
}
result;

// using if block works, but what if we want to do the same logic in a declarative
// way, i.e when using an object literal? the solution is to use destructuring.
// this relies on the fact that undefined destructuring works in an object, see
// below
const useDestructuring = value => ({
  ...(typeof value === "undefined" ? undefined : { value })
});

result = useDestructuring(undefined);
result;

result = useDestructuring("value");
result;

// destructuring undefined

result = { ...undefined }
result

result = [...undefined]