Comparing ng-transclude usage: element or attribute styling

Creating a wrapper directive to frame a notification widget within a list is my goal. I plan to transclude specific content based on a property from the 'notif' object into this frame. Currently, I have hardcoded a 'div' element.

The index.cshtml file contains the following:

<div ng-controller="notificationCenterCtrl">
    <ul>
        <li ng-repeat="notif in allNotifications">
            <notification-base notification="notif" remove="removeNotification(notif)">
                <div style="background-color: fuchsia">bla bla</div> 
            </notification-base>
        </li>
    </ul>
</div>

This is the directive specifications:

ns.directive("notificationBase", function() {
    return {
        restrict: 'E',
        replace: true,
        transclude: true,
        templateUrl: '/Scripts/notification-base.html',
        controller: 'notificationBaseCtrl',
        scope: {
            notification: '=',
            removeNotif: '&remove'
        }
    };
});

Wondering why the code below works, displaying the transcluded 'div' with a fuchsia background?

<div>
    My notification title: {{notification.name}}
    <div ng-transclude id="notificationContent">

    </div>
    <a ng-click="remove()">Remove</a>
</div>

...but when used as an element, the fuchsia div no longer appears.

<div>
    My notification title: {{notification.name}}
    <div id="notificationContent">
        <ng-transclude></ng-transclude>
    </div>
    <a ng-click="remove()">Remove</a>
</div>

What differentiates using 'ng-transclude' as an attribute versus an element? (I am using Firefox).

Answer №1

It was only recently, with the implementation of this pull request, that the ngTransclude directive started supporting usage as an element.

If you are using an older version of Angular (less than 1.3), utilizing ngTransclude as an element is not supported; mainly due to the need for IE8 support.

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