substance/util/cloneDeep.js

Substance is a JavaScript library for web-based content editing. It provides building blocks for realizing custom text editors and web-based publishing system. It is developed to power our online editing platform [Substance](http://substance.io).

import { cloneDeepWith } from '../vendor/lodash-es'
import platform from './platform'

export default function cloneDeep (val) {
  return cloneDeepWith(val, value => {
    if (platform.inBrowser && value instanceof window.File) {
      return value
    }
  })
}