javascript - Two way data-binding in slider in AngularJS -


i have use case need slider-directive update configuration & model value dynamically through controller. trying create 2 way data binding. however, not able find right way create 2 way data-binding in directive. following code. slide event on slider triggers directive update 'scope.model'. though doesn't respond controller updates 'scope.config' or 'scope.model':

.directive("slider", function() { return {     restrict: 'a',     scope: {         config: "=config",         model: "=model",         trigger: '=trigger'     },     link: function(scope, elem, attrs) {       //data binding done here using $watch scope.model          $(elem).slider({             range: "min",             min: scope.config.min,             max: scope.config.max,             value: scope.model,             step: scope.config.step,             slide: function(event, ui) {                 scope.$apply(function() {                     scope.model = ui.value;                 });                 console.log(scope.model);                 scope.$apply(scope.trigger);             }             });         }     } });

please me in this. have gone through available answers wasn't able find suitable answer

base directive on ngmodelcontroller. in way can use ngmodel functionality bind everything, , use ngchange run callback, without need $watch (plunkr):

app.directive("slider", function() {   return {     restrict: 'a',     scope: {       config: "=config"     },     require: 'ngmodel',     link: function(scope, elem, attrs, ngmodel) {       var init = false;       var $slider = $(elem);        ngmodel.$render = function() {         if (!init) {           $slider.slider({             range: "min",             min: scope.config.min,             max: scope.config.max,             step: scope.config.step,             slide: function(event, ui) {               scope.$apply(function() {                 ngmodel.$setviewvalue(ui.value);               });             }           });            init = true;         }          $slider.slider('value', parseint(ngmodel.$viewvalue, 10));       }      }   } });

usage:

  <div id="km-slider" class="slider" slider="" config="milessliderconfig"    ng-change="filtercars(sliderranges.kms)"   ng-model="sliderranges.kms"></div>

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