Express view helpers loader. Loads all modules in folder and registers all functions on every module under `Helpers.registered`

flash_helper.js

var FlashHelper = {};


FlashHelper.bootstrapAlertClassFor = function(key) {
  return {
    "error": "danger",
    "alert": "danger",
    "notice": "info"
  }[key] || key;
};


module.exports = FlashHelper;

helpers.index.js

var fs = require('fs');
var path = require('path');
var express = require('express');
var basename = path.basename(__filename);


var Helpers = {};


Helpers.registered = {};


Helpers.register = function(key, cb) {
  this.registered[key] = cb;
};


// Register all helper files
var files = fs.readdirSync(__dirname);
files.forEach((filename) => {
  if (filename !== basename) {
    var helperModule = require(`./${ filename }`);
    for (var key in helperModule) {
      var value = helperModule[key];
      Helpers.register(key, value);
    }
  }
});




module.exports = Helpers;

utils_helper.js

var UtilsHelper = {};


UtilsHelper.concat = function(...args) {
  return args.slice(0, -1).join('');
};


UtilsHelper.join = function(str, ...args) {
  return args.slice(0, -1).join(str);
};


UtilsHelper.json = function(obj) {
  return JSON.stringify(obj, null, 2);
};




module.exports = UtilsHelper;

views.shared._flash.handlebars

{{#each getMessages as |messages key| }}
  {{#each messages as |message| }}
    <div class="alert alert-{{ bootstrapAlertClassFor key }} alert-dismissible text-center" role="alert" style="border-radius: 0;">
      <button type="button" class="close" data-dismiss="alert" aria-label="Close">
        <span aria-hidden="true">&times;</span>
      </button>
      {{ message }}
    </div>
  {{/each }}
{{/each }}