mail/src/styleguide/helpers/strip-file-extension.js

'use strict';

module.exports.register = function(Handlebars) {

  // Customize this helper
  Handlebars.registerHelper('stripFileExtension', function(str) {
    var content = str.replace(/\.[^\.]*$/, '');
    return new Handlebars.SafeString(content);
  });

};