es-next-tools/dist/object/pick.js

A comprehensive utility library for JavaScript and TypeScript that provides a wide range of functions for common programming tasks, including mathematical operations, date manipulations, array and object handling, string utilities, and more.

export function pick(object, keysOrPredicate) {
    const result = {};
    if (Array.isArray(keysOrPredicate)) {
        for (const key of keysOrPredicate) {
            if (key in object) {
                result[key] = object[key];
            }
        }
    }
    else if (typeof keysOrPredicate === 'function') {
        for (const key of Object.keys(object)) {
            const value = object[key];
            if (keysOrPredicate(key, value)) {
                result[key] = value;
            }
        }
    }
    return result;
}