getByPath function get

utils.js

/**
 *
 * @param {object} obj
 * @param {string} path
 * @example ```js
  getByPath(obj, 'a.c.b.0.c')
  ```
 */
export const getByPath = (obj, path) => {
  if (obj == null) return null
  const arrPath = path.split('.')
  const length = arrPath.length
  let index = 0
  let result = obj

  while (index < length) {
    const key = arrPath[index]
    index += 1
    if (result[key] == null) return null
    result = result[key]
  }

  return result
}