thelbouffi

REQUIREMENTS:
- php-pear (install automatically php7.0-xml and php-xml)
	sudo apt-get install php-pear
-php7.0-mbstring
	sudo apt-get install php7.0-mbstring
-php7.0-dev
	sudo apt-get install php7.0-dev

INSTALLATION:
1- cd /tmp/xxxxxx (e.g: cd /tmp/pear/download)

thelbouffi

var XLSX = require('xlsx');
var workbook = XLSX.readFile('fileName.xlsx');
var sheet_names = workbook.SheetNames;//array of sheet names
//console.log(sheet_names);
var worksheet = workbook.Sheets;

for(x in sheet_names) {
  worksheet = workbook.Sheets[sheet_names[x]];
  //console.log(worksheet);
  var header = []; //initialize header array

thelbouffi

var fs = require('fs');
// Reade file synchronously and put the result in buffer
var file = fs.readFileSync('fileName.pdf');
// Code the file in base64
var base64EncodedPDF = new Buffer(file).toString('base64');
// Decode the file
var baseDecodedPDF = new Buffer(base64EncodedPDF, 'base64');
// Get the decoded file in its original format
fs.writeFileSync('decodedPDF.pdf', baseDecodedPDF);

thelbouffi

// This code will generate 10 iterations
(function test(i){
  console.log('test'+i);
  // put here the code of anything you want to execute
  if(i--){
    test(i)
  }
})(10)

thelbouffi

// Loop for doesn't work
/*
for (var i=1; i < 5; i++) {
  setTimeout(function () {
    console.log('test');
  }, 3000);
}
*/

// Solution

thelbouffi

Install mongodb
sudo apt-get install mongodb

Acess mongodb.service and insert the configuration code
cd /lib/systemd/system
sudo vim mongodb.service

[Unit]
Description=High-performance, schema-free document-oriented database
Documentation=man:mongod(1)

thelbouffi

var vehicle = function(ty) {
  this.type=ty;
}
vehicle.prototype.ride = function() {
  console.log('I am riding a ', this.type);
}
var newRebuild = function(constructor){
  var obj = {};
  Object.setPrototypeOf(obj, constructor.prototype);
  var arArgs = Array.from(arguments).slice(1);

thelbouffi

JavaScript is untyped, meaning that we can pass around data and objects as we want. 
We can write code that calls methods that don't exist on an object, or variables that we don't have.
These problems are hard to discover when you are writing code and it can lead to unstable code,
and doing big changes of your code can become very difficult and risky as you don't immediately see if your changes
conflicts with the rest of the code.

TypeScript is mainly about adding types to JavaScript. That means that TypeScript requires you to accurately
describe the format of your objects and your data. When you do that, that means that the compiler can investigate 
your code and discover errors. It can see that you are trying to call a function that does not exist or use a variable 
that is not accessible in the current scope.

thelbouffi

Node.js - npm Cheat Sheet

(Full description and list of commands at - https://npmjs.org/doc/index.html)

##List of less common (however useful) NPM commands

######Prepand ./bin to your $PATH Make sure to export your local $PATH and prepand relative ./node_modules/.bin/:

thelbouffi

// Node.js CheatSheet.
// Download the Node.js source code or a pre-built installer for your platform, and start developing today.
// Download: http://nodejs.org/download/
// More: http://nodejs.org/api/all.html


// 0. Synopsis.
// http://nodejs.org/api/synopsis.html