title: format numbers on ios
body: <p>I'm looking for a way to format a string into number and show it on textfield</p>
  
  <p>For example: I have the number <code>"1000"</code>, I want to it convert into <code>"1.000"</code> or <code>100000</code> into <code>100.000</code>.  Or <code>1000000</code> into <code>1.000.000</code>. Please help me if you know solution for this</p>
  
  <p>Thanks</p>