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import aws from 'aws-sdk';

// ======================================== 
// ! Sign
/*
 * AWS connection to get the signed url
 */
// ========================================
const sign = (req, res) => {
  const { AWS_KEY_ID, AWS_SECRET_ID, AWS_REGION, AWS_BUCKET, AWS_EXPIRY_TIME } = process.env;

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function connect(mapStateToProps){
  const state = {
    currentGuess: 0,
    response: '',
    guesses: []
  };
  return function(component){
    newProps = Object.assign(
      {},
      component.props,

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Docs: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

/search
const pageLimit;
[.limit(pageLimit)]
book: 1,2,3,4,5,
limit: pageLimit,
total: Book.find().count()

/search?page=1

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/*==============
 * Constructor
 ===============*/

/* function Kitty:
 * prototype: Function
 * __proto__: Object
 */
function Kitty(){
  this.legs = 4;

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function Robot(){
  this.parts = [];
}

Robot.prototype.legs = 2;
Robot.prototype.changeLegs = function(num){
  this.__proto__.legs = num;
}

robby = new Robot();

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Update apt

sudo apt-get update

Install Wireless driver

sudo apt-get install git dkms
git clone https://github.com/smlinux/rtl8723de.git
sudo dkms add ./rtl8723de

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/*
 * reducers/user.js
 */
const userInitialState = {
  authToken: null,
  userId: null
}
const userReducer = (state = userInitialState, action)=>{
  return state;
}

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function match(str){
  var temp = [];
  for(var i = 0; i < str.length; i++){
    var current = str[i];
    var lastChild = temp[temp.length - 1];
    console.log(current, lastChild);
    if(current === '(' || current === '{' || current === '['){
      temp.push(current);
    }
    if(temp.length > 0){

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/* ============================================
 * index.js
 * ============================================*/
import sumOperation from './operations'

/* ============================================
 * operations.js
 * ============================================*/
export default sum = (a,b) => a+b;

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Qué es una variable?
Qué es una variable global?
Qué es una variable local?
Qué es una función?
A qué nos referimos con declarar una función?
A qué nos referimos con invocar una función?
Qué es un argumento?
Para qué sirve una declaración if?
En qué situaciones usamos un ciclo for?
En qué situaciones usamos un ciclo while?