html - Setting Minimum Value to a Substraction (AngularJS) -

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i know how possible set minimum value of "0" substration (100 - message.length). don't want negative values returned when minimum number of caracteres (100) verified (for instance: "number of caracteres left: -55"). thank you.

<tr>     <td colspan="2" align="center">         <textarea rows="10" cols="50" name="message" ng-model="message"></textarea>     </td> </tr> <tr>     <td align="center">number of caracteres left: {{100 - message.length}}     </td> </tr> <tr>     <td align="center" colspan="2">         <button type="submit" class="btn btn-success" ng-disabled="(!message || message.length < 100)">send</button>     </td> </tr>

you try {{100 - message.length>0?100 - message.length:0}}


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