How to Concisely Extract Specific Properties from an Object in ES6?

One-liner to Extract Properties from an Object in ES6

Problem:

How can you write a function that selects specific properties from an object in the most concise manner in ES6?

Initial Solution:

The following approach uses destructuring and a simplified object literal to achieve this:

(v) => {
    let { id, title } = v;
    return { id, title };
}

Improved Solution:

A more streamlined solution, which also eliminates the repetition of property names, can be achieved through parameter destructuring:

({id, title}) => ({id, title})

This solution provides a more concise alternative while retaining the desired functionality.

Alternative Approaches:

• Object.assign: This approach can be used to preserve the attributes of the original properties while also filtering out non-enumerable properties:

function pick(o, ...props) {
    var has = p => o.propertyIsEnumerable(p),
        get = p => Object.getOwnPropertyDescriptor(o, p);

    return Object.defineProperties({},
        Object.assign({}, ...props
            .filter(prop => has(prop))
            .map(prop => ({prop: get(props)})))
    );
}

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