Tips for successfully passing a value within the link function of an Angular directive

Hello everyone, I am facing an issue with my directive.

function percentview($compile) {
    var linker = function (scope, element) {

        var controldef = "";
        switch (scope.percentage.state) {
            case 'stable':
                controldef = ' <span class="text-yellow font-17">' +
                    '  <i>0%</i>' +
                    '<i class="fa "></i> </span>';



                break;
            case 'up':
                controldef = ' <span class="text-issue font-17">' +
                   '  <i>+ {{percentage.percentage}}%</i>' +
                   '<i class="fa fa-arrow-up"></i> </span>';
                break;
            case 'down':
                controldef = ' <span class="text-green font-17">' +
                  '  <i- {{percentage.percentage}}%</i>' +
                  '<i class="fa fa-arrow-down"></i> </span>';
                break;
            default:
                break;
        }
        element.html($compile(controldef));
    };
    var directive = {
        restrict: 'E',

        scope: {
            percentage: '='
        },
        link: linker

    }

    return directive;
}

percentview.$inject = ['$compile'];
angular
 .module('app')
 .directive('percentview', percentview);

html://

<percentview percentage="percentiles[0]"></percentview>

Currently, I am encountering an error message stating scope.percentage is undefined. Upon logging the scope object in the link function, I can see that there is a property (object) called percentage with all the necessary values. Does anyone know how I can successfully pass an object in the link function, or can identify what might be wrong with this code?

Answer №1

The transfer of the variable to the link function appears to be functioning correctly.

When passing a literal value, it works without any issues as demonstrated in the example provided below. It's possible that there are scope-related issues causing "percentiles[0]" to not be accessible within that scope.

http://jsbin.com/zodeva/edit?html,js,console

Answer №2

Have you attempted accessing the state of the element.percentage property? It seems that percentage is a key part of the element.

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