stringCountRecursion.js

'use strict'

function stringCount(object) {
  let count = 0
  if (typeof object === 'object' && !Array.isArray(object) && object) {
    Object.keys(object).forEach(key => {
      if (typeof object[key] === 'string')
        count++
      if (Array.isArray(object[key]))
        count+= stringCount(object[key])
    })
  }
  if (Array.isArray(object) && object) {
    object.forEach(item => {
      if (typeof item === 'string')
      count++
    })      
  }
  return count
}