Some common handlebars helpers

truncateTextWithReadMore.js

Handlebars.registerHelper('trimTextWithReadMoreLink', function (textToTrim) {
  var link, textToShow, el;
  var wordsAllowed = 30;
  if ( textToTrim === undefined) {
    return "";
  }

  var wordsTokenized = textToTrim.split(' ');

  if (wordsTokenized.length > wordsAllowed) {
    link = '<a href="#" class="see-more">See More</a>';
    textToShow = wordsTokenized.slice(0, wordsAllowed + 1).join(' ');
    el = [
      '<span class="truncated-text-wrapper" data-original-text="', textToTrim, '">',
        textToShow,
        '... ',
        link,
      '</span>'
    ];

    el = el.join('');
  } else {
    el = textToTrim;
  }

  return new Handlebars.SafeString(el);
});