framework/ember/app/helpers/highlight-words.js

import Ember from 'ember';

export default Ember.Handlebars.makeBoundHelper(function(text, phrase) {
  if (phrase) {
    var words = phrase.split(' ');
    var replacement = function(matched) {
      return '<span class="highlight-keyword">'+matched+'</span>';
    };
    words.forEach(function(word) {
      text = text.replace(
        new RegExp("\\b"+word+"\\b", 'gi'),
        replacement
      );
    });
  }
  return new Ember.Handlebars.SafeString(text);
});