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const reversea = (cadena) => {
  cadena = (cadena) ? cadena : '';
	return (cadena).split('').reverse().join('');
};

const countCaracteres = (cadena) => {
  cadena = (cadena) ? cadena : '';
  let total = 0;
  let char = '';
  const arr = cadena.split('').sort();

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/**
 * High order function
 */

{ // using currying
  const createScream = fn => message => fn(message.toUpperCase() + '!!!');
  const scream = createScream(message => console.log(message));
  scream('functions can be returned from other functions');
}
{ // using currying

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// npm i -S dotenv uuid express cors bcryptjs jsonwebtoken body-parser
require('dotenv').config();
const fs = require('fs');
const http = require('http');
const cors = require('cors');
const uuidv4 = require('uuid/v4');
const express = require('express');
const bcrypt = require('bcryptjs');
const jwt = require('jsonwebtoken');
const bodyParser = require('body-parser');

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#!/bin/bash

target_branch="master"
working_tree="/home/deploy/icdt-production"
git_tree="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

while read oldrev newrev refname
do
    branch=$(git rev-parse --symbolic --abbrev-ref $refname)
    if [ -n "$branch" ] && [ "$target_branch" == "$branch" ]; then

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const getTotalTime = seconds => {
  let hh = Math.floor(parseInt(seconds) / 3600);
  let mm = Math.floor((seconds - (hh * 3600)) / 60);
  let ss = seconds - (hh * 3600) - (mm * 60);

  if (hh < 10) { hh = `0${hh}`; }
  if (mm < 10) { mm = `0${mm}`; }
  if (ss < 10) { ss = `0${ss}`; }

  return `${hh}:${mm}:${ss}`;

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const memo = fn => {
    const cache = {};
    return function () {
        // arguments belongs to our returned anonymous function
        // fn is the function we wish to apply this arguments
        const key = JSON.stringify(arguments);

        if (!!!cache[key]) cache[key] = fn.apply(null, arguments);
        console.log({ cache });

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'use strict';

const fs = require('fs');
const path = require('path');
const Sequelize = require('sequelize');
const basename = path.basename(__filename);
const env = process.env.NODE_ENV || 'development';
const config = require(__dirname + '/../config/config.json')[env];

let sequelize = new Sequelize(

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const path = require('path');
const fs = require('fs');
const Jimp = require('jimp');
const { v4: uuidv4 } = require('uuid');
const imagesDirPath = path.join(__dirname, './images/');

const writeFile = (dirPath, fileName, data, options) => {
  if (!fs.existsSync(dirPath)) fs.mkdirSync(dirPath);

  const joinedPath = path.join(dirPath, fileName);