Using Angular directives to dynamically add event listeners with the ng-repeat directive

I am currently working with a directive that includes event listeners for an element in the link function.

For example:

...
link: function(scope, element) {
    // this gives us the native JS object
    var el = element[0];

    el.draggable = true;

    el.addEventListener('dragstart', ...);
}
...

Now, I am using this directive within an ng-repeat. I am curious to know if a new event listener will be created for each element within the ng-repeat?

If there are 100 items in the ng-repeat, could this potentially impact performance?

If so, are there any modifications I could make to have all elements connected to the same event listener?

Answer №1

Absolutely, incorporating the event into each element within the ng-repeat would seamlessly enhance the functionality. The directives run once for each element to which they are connected. The listener alone should not result in any significant performance impacts, as it is no more taxing than the ng-repeat, which can be somewhat lacking in performance efficiency.

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