During my exploration of AngularJS directives, I encountered a task that required me to activate the directive's listener upon clicking a button and passing data from the controller to it.
Sample Directive
app.directive('graphVisualization', function() {
var containerid = document.getElementById('left-graph-container');
return {
restrict: 'A',
scope: {
data: '=',
val: '=',
},
link: function(scope, element, attrs) {
scope.$watch('data', function(newVal, oldVal) {
//listener implementation
})
}
}
Sample HTML
<div graph-visualization data="graphdata" val="stability">
</div>
<div>
<input type="button" value="Call" ng-click="setData(6)" />
</div>
Controller Example
app.controller('MainCtrl', ['$scope', function() {
$scope.graphdata = ['time1', 'time2', 'time3'];
$scope.setData() = function(val) {
$scope.data = val;
//trigger the directive's listener (link function) with '$scope.data'
}
}])
In summary, my goal is to send $scope.data from the controller to the directive and execute the code within the link function utilizing this provided data. The listener code involves rendering a D3 graph, which I intend to update with new data each time the button is clicked. How should I approach this task?