Could someone please explain how to obtain a compiled string within an AngularJS directive?

Check out the following code snippet for my custom directive:

    mymodule.directive("test", function($compile) {
return {
    restrict: 'E',
    replace: true,
    template:
            '<div data-date="{{avail}}"></div>',
    scope: {
        avail: '='
    },
    controller: function($scope) {
        $scope.dump = function(el) {
            console.log($('<div>').append(el.clone()).html());
        };
    },
    link: function postLink($scope, $element, $attrs) {            

        $scope.dump($element); // output '<div data-date="{{avail}}"></div>'
        $scope.dump($compile($element)($scope));  // output '<div data-date="{{avail}}"></div>'

        setTimeout(function() {
            $scope.dump($element); // output '<div data-date="12.10.2014"></div>'
        }, 1);
    }
}
});

I'm trying to figure out how to fetch the compiled string like this

<div data-date="12.10.2014"></div>

during the execution of the postLink function (without relying on setTimeout).

Answer №1

Similar to what @Ben mentioned, make sure to remove the $watch listener after using it

var stopWatching = $scope.$watch('avail', function(){
   if($scope.avail) {
       $scope.update($element);
       stopWatching();
   }
});

Another option is to utilize $timeout

$timeout(function(){
    $scope.update($element);
})

Answer №2

Try implementing the following solution:

let executed = false;

$scope.$watch('availability', function(){
  if($scope.availability && !executed){
    $scope.executeFunction($element);
    executed = true;
  }
});

The issue you are encountering is due to the link function being called before the scope value is passed via the linked attribute. By using a watch, you can execute the desired function once the value has been set - ensuring it runs only once with the help of the 'executed' flag. Using a timeout may not be as reliable since the duration between the link function call and setting the scope value is uncertain.

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