title: Auto-space within input field
body: <p>I'm currently working on a project in which I need to fetch street/city details from a DB using a zipcode. Dutch zipcodes use a "1111 AA" format, I would like to have this entered in a single input field while automatically adding the space in between the numbers and letters if the user doesn't enter the space himself.</p>
  
  <p>I've been googling this quite a bit and all I have been able to find so far were ways of restricting the user input to numeric characters.</p>
  
  <p>Thank you.</p>