bootstrap-vue/src/utils/copyProps.js

BootstrapVue provides one of the most comprehensive implementations of Bootstrap 4 components and grid system for Vue.js and with extensive and automated WAI-ARIA accessibility markup.

import { isArray } from './array'
import { assign } from './object'
import identity from './identity'

/**
 * @param {[]|{}} props
 * @param {Function} transformFn
 */
export default function copyProps (props, transformFn = identity) {
  if (isArray(props)) {
    return props.map(transformFn)
  }
  // Props as an object.
  const copied = {}

  for (const prop in props) {
    if (props.hasOwnProperty(prop)) {
      if (typeof prop === 'object') {
        copied[transformFn(prop)] = assign({}, props[prop])
      } else {
        copied[transformFn(prop)] = props[prop]
      }
    }
  }

  return copied
}