parse url query string

gistfile1.coffee

params = (url) ->
  plus = /\+/g
  search = /([^&=]+)=?([^&]*)/g
  decode = (s) -> decodeURIComponent s.replace(plus, ' ')
  
  index = url.indexOf '?'
  if index isnt -1 then hash = url.substr index + 1 else hash = ''
  
  result = {}
  while match = search.exec(hash)
    key = decode match[1]
    value = decode match[2]
    result[key] = value
  result
  
console.log params 'http://tus.io?offset=1023'