Exploring the capabilities of Angular through filter functions and ng-bind-html

I created an angular filter called 'strLimit' to restrict the number of characters in a string:

mod.filter('strLimit', ['$filter', function ($filter) {
  return function (input, limit) {
   if (!input) return;
   if (input.length <= limit) {
     return input;
   }

   return $filter('limitTo')(input, limit) + '...';
  };
}]);

When I use this filter along with ng-bind-html, sometimes it cuts off the output like:

"This is a dummy string &ntil..."

In PHP, I could solve this issue by using mb_substr instead of substr. Now I need to find a way to correct this behavior in Angular.

Answer №1

After some trial and error, I discovered a solution that does not involve using ng-bind-html. I decided to create a new filter that utilizes the he library to decode the HTML entities in the string before applying any other filters:

mod.filter('htmlEntitiesDecode', function () {

 return function (html) {
  return he.decode(html);
 }

});

If you're interested, the library I used for this is called he library.

With this approach, I can now easily limit the length of a string like so:

<p>{{ longString | htmlEntitiesDecode | strLimit : 50 }}</p>

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