javascript - Angular material input number change format -


in angular-material app have field validation:

<input type="number" ng-model="myvalue"        name="myvalue"         min="0" max="100"         ng-pattern="/^[0-9]\d*(\.\d+)?$/" required>

it works fine. need make allow user type .75 , instead of 0.75

so question how apply filter:

if( myvalue.substring(0,1) == "." ){     myvalue = "0" + myvalue; }

before angular material ng-pattern , type="number" validation

you can write directive $filter, $formatters , $parsers:

app.directive('parser', ['$filter',     function($filter) {         return {             restrict:'a',             require: 'ngmodel',             link: function(scope, element, attrs, ctrl) {                  ctrl.$formatters.unshift(function (a) {                 return $filter('myfilter')(ctrl.$modelvalue)             });               ctrl.$parsers.unshift(function (viewvalue) {              element[0].value = $filter('myfilter')(element[0].value);              return element[0].value;             });             }         };     } ]);  app.filter('myfilter', [     function() {         return function(input) {             if( input && input.substring(0,1) == "." ){              input = "0" + input;            }             return input;         };     } ]);

demo plunkr

however cannot use type number because remember . not supported , doesn't parses integer

hope give direction


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