Tips for transferring element attributes to ng-show in AngularJS

I have a chart in my application that looks like this:

<canvas id="line" class="chart chart-line" height="250" width="{{width_chart}}" chart-data="data" chart-labels="labels" chart-series="series" chart-options="options" chart-colors="colors" chart-dataset-override="datasetOverride" chart-click="onClick" ng-show="isChecked()"> </canvas>

Within the isChecked function, I need to retrieve the ID of the canvas, which is "line" in this case. Then I need to check if this ID exists in an array within $scope, and based on its presence, return true or false to show/hide the chart.

$scope.isChecked = function() {
console.log('I am in the isChecked function');
console.log(this);
      // Some code
      return true;    
  };

My issue is that I cannot access the ID within the function using any method. The "this" keyword is also not functioning as expected. I tried the directive approach mentioned in the link below, but it did not work either.

Pass element using ng-show AngularJS

Any assistance would be greatly appreciated.

javascriptangularjsangularjs-ng-show

Answer №1

Here is a way to retrieve the id:

<div id="line" ng-click="ShowId($event)" ng-show="isChecked"></div>  

$scope.ShowId = function(event){
    var id = event.target.id;
    if(id == 'line'){
      $scope.isChecked = true;
    }
};

Alternatively:

<div id="line" ng-click="ShowId($event)" ng-show="isChecked('line')"


 $scope.isChecked = function(id){ 
        if(id == 'line'){
          return true;
        }else{
          return false;
        }

  }

If you are obtaining it from another ng-repeat or an array, simply pass it as a model.

Answer №2

ng-click="isSelected('line')"

When using AngularJS

$scope.isSelected = function(lineId) {
console.log(lineId);

      // additional logic
      return true;    
  };

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