get url param

getUrlParam.js

const url = 'http://www.xxx.com.br?type=session&value=2&user=15&teste=123'

const getParam = (url, param) => {

  const p = url.indexOf(`${param}=`)
  const start = url.slice(p + (param.length + 1))
  const value = start.slice(0, start.indexOf('&') >>> 0)

  return (p < 0 || !value) ? false : value
}

console.log(
  getParam(url, 'type')
  , getParam(url, 'value')
  , getParam(url, 'user')
  , getParam(url, 'teste')
)