How best to convert a ClientRect / DomRect into a plain Object

Question

The result of someElement.getBoundingClientRect() returns a special object of type ClientRect (or DomRect apparently)

Answer 1

Functional ES6 variant:

const propValueSet = (prop) => (value) => (obj) => ({...obj, [prop]: value})
const toObj = keys => obj => keys.reduce((o, k) => propValueSet(k)(obj[k])(o), {})
const getBoundingClientRect = el => toObj(['top', 'right', 'bottom', 'left', 'width', 'height', 'x', 'y'])(el.getBoundingClientRect())