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/**
 * Constant as an array
 */
const OBJ =  ["foo","bar"];
console.log(OBJ);
// chaging the value of a constant "variable" =)
// no errors displayed
OBJ[0] = "another value";
OBJ[1] = "example text";

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/**
 *
 */
const OBJ =  {
  prop1 : "foo",
  prop2 : "bar",
  prop3 : 100
}

console.log(OBJ);

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/**
 *
 */
const DELAY = 1000; // a constant MUST be initialized
setTimeout(function(){
  console.log("After 1 second…");
}, DELAY);
DELAY = 2000; // error

//END

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/**
 *
 */
var _myVar = "Banana";
var _myFunction = function(){
  _myVar = "Apple"
  let _mySecondVar = "Avocado"
  console.log("_myVar -> " + _myVar); 
  console.log("_mySecondVar -> " + _mySecondVar); 
};

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/**
 *
 */
_myVar = "Banana"; // using a var before its is declared
console.log(_myVar);
var _myFunction = function(){
 _myVar = "Apple"; // using before the declaration
 console.log("_myVar -> " + _myVar); 
};
_myFunction(); // calling the variable before the declaration

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/**
 * 
 */
var _myVar = "Banana";
console.log(_myVar);
var _myFunction = function(){
 _myVar = "Apple";
 console.log("_myVar -> " + _myVar); 
};
_myFunction();

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# sometimes its possible to get this error when your are trying to connect to a remote server using ssh
#if the message appear

ERROR ECDSA host key for <IP> has changed and you have requested strict checking. 
Host key verification failed. 

# you can run
ssh-keygen -R <IP>

# Host<IP> found: line 19

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# if you change the /etc/hosts and nothing happend... try flush the DNS cache
# OSX 10.9 +
sudo dscacheutil -flushcache; sudo killall -HUP mDNSResponder

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# --- turn off
sudo mdutil -a -i off

# --- turn on 
sudo mdutil -a -i on

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#!/bin/bash

#-- create the swap
sudo fallocate -l 1G /swapfile

#-- change permission
sudo chmod 600 /swapfile

#-- do the swap
sudo mkswap /swapfile