title: What is the use of angular ui-mask?
body: <p><a href="https://htmlpreview.github.io/?https://github.com/angular-ui/ui-mask/master/demo/index.html" rel="nofollow">https://htmlpreview.github.io/?https://github.com/angular-ui/ui-mask/master/demo/index.html</a> </p>
  
  <p>This is the only documentation that i could find. And it does not make much sense to me. There is no official demo available as far as i can see.</p>
  
  <p>ui-mask-placeholder and ui-mask-placeholder-char do not seem to work.</p>
  
  <p>When the user types some value in the masked field, the mask vanishes and the user can type any value he wants. So basically I am just left using a placeholder. Then what is the point of the ui-mask? What am I missing? </p>