object to query string

object2QueryString.js

function object2QueryString(obj) {
  let queryString = ''
  if (Object.keys(obj).length) {
    queryString = Object
      .keys(obj)
      .map(k => k + '=' + obj[k])
      .reduce((a, b) => a + '&' + b, '')
  }
  
  return queryString.slice(1)
}