purplejs/src/dom/add-props-and-events/index.ts

A little bit of React

import ElementObject from '../../interfaces/element-object'
import HTMLElement from '../../interfaces/html-element'
import keyIsEvent from '../key-is-event/index'
import addEvent from './add-event'
import addProperty from './add-property'

export default (
  element: ElementObject,
  dom: HTMLElement,
): HTMLElement => {
  const propKeys: string[] = Object.keys(element.props || {})

  if (!propKeys.length) return dom;
  
  const clonedDOM: HTMLElement = dom.cloneNode()
   
  propKeys.forEach(key => {
    keyIsEvent(key)
    ? addEvent(element, clonedDOM, key)
    : addProperty(element, clonedDOM, key)
  })

  return clonedDOM
}