Move properties and their values from one object into another by mutating the source object.

move-props.js

// const source = {name: 'Martin', age: 38};
// const target = moveProps(/name/, source);
// console.log(source, target); => {age: 38}, {name: 'Martin'}
export default function moveProps(pattern, source, target = {}) {
  return Object.keys(source).reduce((accumulator, key) => {
    if (pattern.test(key)) {
      accumulator[key] = source[key];
      delete source[key];
    }
    return accumulator;
  }, target);
}