etoxin

es6-summary

A short summary of ES6 features and their ES5 equivalents.

Access in-depth ES6 articles here.

Table of contents

1. Arrow Functions
2. Functions

BritneyJo

ES6 / ES2015

Learning Objectives

• Understand what ES2015 is and how to use it
• Exposure to and implementation of many of the most useful new features introduced in ES2015:
  • String Interpolation
  • Arrows
  • Let vs. Const vs. Var
  • Classes

mdang

ES6 Practice

Convert the following ES5 code to ES6.

Template Literals

// Template literals
var li = '<li>' +
  '<div class="row">' +

deb1990

1. Prime Number

The 10001st Prime Number is 104743. Please find the code in primenumber.js file.

Technical Notes

• In the code a cache is used to do the calculation more efficiently. When calculating the number for the 1st time, it takes around 23.35302734375ms, but if we run it again, it takes just 0.260986328125ms.
• If next time we try to get the 10002nd prime number, The program will only calculate the 10002nd prime, because the previous 10001 numbers are already saved in the cache. This is again a huge performance benefit.

2. When would you choose a NoSQL database instead of a relational database and why?

• In NoSQL each document can have its own unique structure. So when the schema of the data is not consistent and can change at any time, NoSQL is preferred. Its very flexible to add new kind of data without affecting existing data.

RolandOtta

#!/bin/bash

# OPLOG_LIMIT: only include oplog entries before the provided Timestamp
# The timestamp is a unix timestamp 
# If your desaster happened for example on 2017-18-10 12:20 and you want to restore until 12:19
# your timestamp is 'date -d "2017-10-18 12:19:00" +%s'

FULL_DUMP_DIRECTORY=$1
OPLOGS_DIRECTORY=$2
OPLOG_LIMIT=$3

stevekinney

General React Architecture

• Video: Andrew Clark: What's Next for React — ReactNext 2016 - YouTube
• Video: Scalable React app architecture [React Bangkok 2.0.0] - YouTube
• Building an Enterprise React Application, Part 1 | Lullabot
• How to avoid refactoring in your first React.js application | Andrej Gajdos
• React Best Practices & Patterns - Sean Saranga Amarasinghe
• React Best Practices and Useful Functions – Nessim Btesh – Medium
• 11 lessons learned as a React contractor – Hacker Noon
• [Characteristics of an

borekb

👋 Moved to https://github.com/borekb/docker-path-workaround

---

Docker in Git Bash / MSYS2 on Windows: path conversion workaround

UPDATE 07/2018: I switched from Git Bash to MSYS2 recently which should be very similar, if not the same, but there some subtle differences which made me realize this is more tricky than I thought and that I don't 100% understand what is going on. If someone can help, please let me know in the comments.

Invoking docker in MSYS2 shell or Git Bash typically fails with complains about paths, for example:

LuisEnMarroquin

#!/bin/bash

CL_NULL='\e[0m'
CL_FAIL='\e[0;31m'
CL_NICE='\e[0;32m'
CL_WARN='\e[0;33m'
CL_BLUE='\e[0;34m'
CL_PURP='\e[0;35m'
CL_CYAN='\e[0;36m'

sjcotto

var json = {
    email : "santiago@konacloud.io",
    name : "Santiago Cotto"
};

  var qr = require('qr-image');
  var mongoose = require('mongoose');
  var image = qr.imageSync(JSON.stringify(json), { type: 'png', size : 10 });

  var Grid = require('gridfs');

jeffrafter

exports.createHandler = function (method) {
  return new Handler(method);
}

Handler = function(method) {
  this.process = function(req, res) {
    params = null;
    return method.apply(this, [req, res, params]);
  }
}