Guide to utilizing a directive for dynamic template modifications

Question

Guide to utilizing a directive for dynamic template modifications

I am facing a challenge with this specific instruction.

angular.module('starter.directive', [])
    .directive('answer', ['Helper', function (Helper) {
        return {
            require: "logic",
            link: function (scope, element, attrs, logicCtrl) {
                var htm = '';
                if(logicCtrl.test == 'a') {
                    htm = '<p>a</p>'
                }
                if(logicCtrl.test == 'b') {
                    htm = '<p>b</p>'
                }
            },
            template: '' // trying to figure out how to incorporate htm here
        }
    }]);

I'm attempting to utilize the htm variable as part of the template,

Any suggestions or advice?

javascript angularjs templates angularjs-directive

Answer 1

Answer №1

If you want to incorporate the htm variable into the directive's scope and use it within the template, you can simply assign it to the scope.

angular.module('starter.directive', [])
.directive('answer', ['Helper', function (Helper) {
    return {
        require: "logic",
        link: function (scope, element, attrs, logicCtrl) {
            scope.htm = '';
            if(logicCtrl.test == 'a') {
                scope.htm = '<p>a</p>'
            }
            if(logicCtrl.test == 'b') {
                scope.htm = '<p>b</p>'
            }
        },
        template: '{{htm}}' // utilize htm in the template here
    }
}]);

UPDATE

To convert HTML strings into a template, you can make use of the $compile service. Here is an example:

angular.module('starter.directive', [])
.directive('answer', ['Helper', function (Helper) {
    return {
        require: "logic",
        link: function (scope, element, attrs, logicCtrl) {
            var htm = '';
            if(logicCtrl.test == 'a') {
                htm = '<p>a</p>'
            }
            if(logicCtrl.test == 'b') {
                htm = '<p>b</p>'
            }
            var el = angular.element(htm);
            compile(el.contents())(scope);
            element.replaceWith(el);
        }
    }
}]);

Answer 2

If you want to incorporate the htm variable into the directive's scope and use it within the template, you can simply assign it to the scope.

angular.module('starter.directive', [])
.directive('answer', ['Helper', function (Helper) {
    return {
        require: "logic",
        link: function (scope, element, attrs, logicCtrl) {
            scope.htm = '';
            if(logicCtrl.test == 'a') {
                scope.htm = '<p>a</p>'
            }
            if(logicCtrl.test == 'b') {
                scope.htm = '<p>b</p>'
            }
        },
        template: '{{htm}}' // utilize htm in the template here
    }
}]);

UPDATE

To convert HTML strings into a template, you can make use of the $compile service. Here is an example:

angular.module('starter.directive', [])
.directive('answer', ['Helper', function (Helper) {
    return {
        require: "logic",
        link: function (scope, element, attrs, logicCtrl) {
            var htm = '';
            if(logicCtrl.test == 'a') {
                htm = '<p>a</p>'
            }
            if(logicCtrl.test == 'b') {
                htm = '<p>b</p>'
            }
            var el = angular.element(htm);
            compile(el.contents())(scope);
            element.replaceWith(el);
        }
    }
}]);

Guide to utilizing a directive for dynamic template modifications

Answer №1

UPDATE

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