I need some ideas for this. Emberjs

I have a helper named format-log

//format-log.js
import Ember from 'ember';

export function formatLog(text) {
    var hashtag = text.match(/[#]\w+/g);
    var newText = text;
    if (hashtag !== null && hashtag !== undefined) {
        for ( var i = 0; i < hashtag.length; i++){
            newText =  newText.replace(hashtag[i], "<a href='' class='hash'>"+ hashtag[i] +"</a>");
        }   
        return newText;
    }else{
        return text;        
    }

}

export default Ember.Handlebars.makeBoundHelper(formatLog);

When I make a new log, I have the need to add a hashtag for example

"This is a example #log"

That text go-through the helper and returns this format

"This is a example < a href="">#log< /a>"

I wanna filter all log that contains the same hashtag make something like Trends Twitter, I am using Ember cli and ember-data

My model

//log.js
import DS from 'ember-data';

export default DS.Model.extend({
  text: DS.attr('string'),
  date: DS.attr('date')
});