<div class="demo-preview-block"> PI: <span mdl-observe="pi"></span><br> PI with formatter: <span mdl-observe="pi | number(value,2)"></span><br> <br> Name: <span mdl-observe="name"></span><br> Name with formatter: <span mdl-observe="name | uppercase(value)"></span> (UpperCaseFormatter)<br> Name with formatter: <span mdl-observe="name | lowercase(value)"></span> (LowerCaseFormatter)<br> </div>