Observable vs Promise | What's the difference?

  • April 2, 2020

Observable vs Promise including what's the difference, eager vs lazy, sync vs async, RxJs operators, Cancellable, and emitting multiple values.

Observable vs Promise | Which is Better?

  • April 2, 2020

Which is better? Observable vs Promise including which is better for what scenarios.

Observable vs Promise | When to use Promise

  • April 2, 2020

Observable vs Promise and when to use a promise including async/await, resolving single events, and more.

Observable vs Promise | When to use Observable

  • April 2, 2020

Observable vs Promise and when to use Observable including multiple values, RxJs, streams of data, cancelling, and operators.

Which Version of Java Should You Use?

  • March 29, 2020

A discussion surrounding the different versions of Java including the difference between SE and EE as well as key features of Java 7, 8, and 9.

Java 14 | New Features

  • March 29, 2020

New features in Java 14 including pattern matching, switch expressions, records, text blocks, npe, packaging tool, gc, and JFR event streaming.

The Node.js Event Loop Explained

  • March 21, 2020

the node.js event loop explained, including what is the nodejs event loop, how does the nodejs event loop work, is the nodejs event loop single threaded, and event loop phases.

When you should be using Kafka

  • March 4, 2020

When you should be using Kafka including what is Kafka, how Kafka works, is Kafka overkill, Kafka vs RabbitMQ, can you use Kafka as a database, and use cases.

Koa vs Express

  • February 21, 2020

Koa vs Express including basic examples with Koa and Express, when to use Koa over Express, and when to use Express over Koa

tsconfig | the missing docs

  • February 6, 2020

tsconfig documentation including what is tsconfig.json, tsconfig include, tsconfig exclude, tsconfig files, tsconfig paths, tsconfig lib, tsconfig target, and tsconfig not working.

$lookup in MongoDB

  • December 19, 2019

$lookup in MongoDB including what is $lookup in MongoDB, $lookup performance, and examples.

Kubernetes vs Docker

  • December 13, 2019

Kubernetes vs Docker, including the difference between Kubernetes and Docker, do you need Docker for Kubernetes, Kubernetes without Docker, and which is better

Getting Started With Node.js and Express

  • October 18, 2019

A tutorial on setting up Express with Node.js

NextJS Examples | Starter

  • October 12, 2019

NextJS starter example including how NextJS works, creating pages and API endpoints using NextJS and the benefits of using NextJS with React

NextJS Examples | Express

  • October 12, 2019

NextJS Express example including sample express app with NextJS, updating package.json for Express, and how nextApp.prepare works

NextJS Examples | MongoDB

  • October 12, 2019

NextJS MongoDB example including mongoose, integrating with express, and sharing a single connection across your application.

NextJS Examples | Layout

  • October 12, 2019

NextJS Layout examples, including shareable components, withLayout example, passing contents as props, and explanations.

create react app | typescript | redux

  • September 25, 2019

create react app and how it works, including npx create-react-app examples and discussions | create react app typescript | create react app redux.

TypeScript Decorators | Examples | Use Cases

  • September 14, 2019

TypeScript Decorators including examples and use cases. Understand TypeScript Decorators and AOP.

ES6 Promise Chaining

  • September 14, 2019

The ultimate guide to ES6 promises and promise chaining. Learn how to work with the ES6 promise and chain promises together in this tutorial with simple examples of ES6 promises.

JavaScript ES6 Promises

  • September 14, 2019

Everything you need to know about promises in JavaScript.

async await Example | JavaScript

  • September 14, 2019

async await example including async await vs promises, async await arrow functions, and async await try catch.

Difference between Observable and Promise | with examples

  • September 3, 2019

The difference between Observable and Promise with examples including difference between the ES6 Promise and RxJS library

Why you should NEVER use Redux with Angular

  • August 7, 2019

A look at the rise of Redux and misconceptions surrounding its need in the Angular world.

React Native vs Ionic

  • July 15, 2019

A discussion as to which is right for your project including what is Ionic, what is React Native, and key similarities and differences..

ng-content example | Angular

  • July 2, 2019

ng-content example including basic example, multiple projections,

How to read a CSV file in Java | with examples

  • June 26, 2019

How to read a CSV file in Java with examples including reading into an ArrayList, parsing a csv file using scanner, reading with a header, and reading by column name.

FileReader vs BufferedReader vs Scanner | Java

  • June 26, 2019

FileReader vs BufferedReader vs Scanner including key differences and comparisons. Understand bye streams, character streams, and buffered streams in Java

ngOnChanges Example | Angular

  • June 6, 2019

ngOnChanges example for Angular including latest version example with explanation

What is Docker?

  • May 14, 2019

What is Docker including how it works, what is a container, what is an image, what is a Dockerfile, and advantages of Docker over a VM.

A Quick Explanation of Docker

  • May 14, 2019

A quick explanation of Docker and using Docker vs vms.

angular vs angularjs | key differences, performance, and popularity

  • May 10, 2019

Angular vs Angularjs including key differences, popularity, performance, advantages of Angular, and should I use Angular or Angularjs

Best Comparison: Angular 2 vs Angular 1

  • May 7, 2019

Clear explanation of key differences in Angular 2 vs Angular 1

Firebase vs Heroku vs AWS

  • April 26, 2019

Best comparison of AWS, Heroku, and Firebase web hosting services including pricing, features, and which is best for your needs.

ngAfterViewChecked Example | Angular

  • April 22, 2019

ngAfterViewChecked example for Angular including latest version example with explanation

ngAfterViewInit Example | Angular

  • April 22, 2019

ngAfterViewInit example for Angular including latest version example with explanation

ngAfterContentChecked Example | Angular

  • April 22, 2019

ngAfterContentChecked example for Angular including latest version example with explanation

ngAfterContentInit Example | Angular

  • April 22, 2019

ngAfterContentInit example for Angular including latest version example with explanation

ngDoCheck Example | Angular

  • April 22, 2019

ngDoCheck example for Angular including latest version example with explanation

ngOnInit Example | Angular

  • April 22, 2019

ngOnInit example for Angular including latest version example with explanation

ngOnDestroy Example | Angular

  • April 22, 2019

ngOnDestroy example for Angular including latest version example with explanation

Angular Module vs. Library vs. Application vs. Workspace

  • March 10, 2019

Angular modules vs libraries including what is an an Angular library and what is an Angular module? The difference between workspaces, applications, and libraries explained.

npm update | how it works

  • February 25, 2019

How npm update works, including how to update packages to specific versions, updating dev dependencies, updating package-lock.json, and troubleshooting npm update not working.

npm install | how it works

  • February 25, 2019

The npm install command and how it works with and without arguments. Learn what happens under the hood with dependency resolution and the difference between npm dependencies and devDependencies.

A Beginner's Guide to NPM

  • February 25, 2019

NPM The Node.js package manager.

The Node.js Event Loop

  • February 21, 2019

The best explanation of the Node.js event loop, easy to understand for beginners.

GraphQL vs REST

  • February 21, 2019

GraphQL vs REST, including what is REST, what is GraphQL, and the pros and cons of choosing GraphQL vs REST for your web service

Why Node.js?

  • February 20, 2019

Why Node.js vs Java? Is there a NodeJS learning curve?

What is a Proxy Server?

  • February 20, 2019

What is a proxy? What is a server? What is a proxy server? - Explained

The Ultimate Guide to Nested Classes in Java

  • February 20, 2019

The inner class in Java with explanations and examples for java nested classes and inner nested classes.

Angular CLI Install | Getting Started

  • February 20, 2019

Quickly install and generate projects with the Angular CLI

Deploying Apps with the Angular CLI

  • February 20, 2019

An overview of how the Angular CLI deployment process works, including the ng build command. Explore the different options and flags to use with ng build as well as the difference between ng build and ng serve.

Understanding Watchers in AngularJS

  • February 20, 2019

A great explanation of AngularJS watchers and performance

Top 4 Reasons to Use Mongoose with MongoDB

  • February 20, 2019

A look at Mongoose and how it makes MongoDB easier through schemas, validations, instance methods, and return results.

The Java Tutorial: Arrays

  • February 20, 2019

A simple introduction to arrays in Java. Get an easy explanation of arrays including basic examples of creating, modifying, copying, sorting and searching arrays. Explore the java.utils.Arrays class and much more in this tutorial.

JavaScript ES6 Classes

  • February 20, 2019

Everything you need to know about ES6 classes in JavaScript.

The Ultimate Guide to Lambda Expressions in Java

  • February 15, 2019

Everything you need to know about lambda expressions in Java, including what lambdas are, syntax, reasons for using lambdas, the java.util.function package, lambda scope, examples and more.

$lookup Examples | MongoDB

  • February 8, 2019

MongoDB $lookup examples including pipeline example, joins, and $lookup with conditions. Quickly understand $lookup aggregations with these examples and explanations

The Shadow DOM: A Quick Explanation

  • February 6, 2019

A simple example of the Shadow DOM

Shadow DOM vs Virtual DOM

  • February 6, 2019

A comparison of the shadow DOM and the virtual DOM including definitions of each and key differences.

The MongoDB Aggregation Pipeline in 5 Minutes

  • February 5, 2019

The MongoDB aggregation pipeline quickly explained with examples for $match, $group, $sum, $unwind, $project

REST vs SOAP

  • January 11, 2019

A discussion on the fundamental difference between REST and SOAP including an in depth look at each ones relationship to web services.

Learn ReactJS Environment Setup

  • January 6, 2019

Everything you need to know about setting up a ReactJS development environment.

Learn ReactJS JSX

  • January 6, 2019

Learn how to use JSX with React including a look at what JSX is, the benefits of using JSX, and using JSX with ReactJS. Learn how to write JavaScript expressions with JSX and CSS with JSX. See basic examples of using JSX with ReactJS.

Learn ReactJS Components

  • January 6, 2019

Everything you need to know about React Components, including what a component is and examples.

Learn ReactJS Props and State

  • January 6, 2019

An introduction to using React props and state including when to use each with examples.

Learn ReactJS Form Example

  • January 6, 2019

A basic form example explaining everything about ReactJS forms including validation.

JavaScript ES6 Intro

  • January 6, 2019

An introduction to JavaScript ES6, tutorial on javaScript and getting started, including development setup and ES6 concepts with examples.

JavaScript ES6 Environment Setup

  • January 6, 2019

A quick tutorial on setting up a Node sandbox environment for JavaScript ES6 practice.

JavaScript ES6 Variables

  • January 6, 2019

A quick tutorial on JavaScript ES6 variables, inlcuding the difference between var, let, const, which to use, and why.

JavaScript ES6 Operators

  • January 6, 2019

A great summary of ES6 operators with examples and explanations for each. A look at arithmetic, logical, bitwise, assignement, and other miscellaneous operators in JavaScript.

JavaScript ES6 Bitwise Operators

  • January 6, 2019

A quick tutorial on bitwise operators including what they are and when to use them with JavaScript ES6.

JavaScript ES6 Functions

  • January 6, 2019

A tutorial on writing JavaScript ES6 functions, including arrow functions and other approaches to defining functions in JavaScript

JavaScript ES6 Loops

  • January 6, 2019

A tutorial on ES6 loops and iterators, including the es6 for...of loop.

JavaScript ES6 Control Flow

  • January 6, 2019

A tutorial on JavaScript ES6 control flow, including if..else, else..if, and swith statements.

JavaScript ES6 Arrays

  • January 6, 2019

An introduction on ES6 arrays, covering array methods with examples for each.

JavaScript ES6 Strings

  • January 6, 2019

A tutorial on JavaScript ES6 strings, including ES6 string methods with examples and explanations.

JavaScript ES6 Objects

  • January 6, 2019

Everything you need to know about creating and modifying objects in JavaScript.

JavaScript ES6 Generators

  • January 6, 2019

Everything you need to know about ES6 generator functions in JavaScript.

Angular Form Validation Examples

  • August 30, 2018

A simple tutorial on Angular form validation, including examples for validation on submit, custom validators, cross field validators, async validators, and more.

Angular Form Examples: Template Driven vs Reactive Forms

  • August 25, 2018

Angular form examples, template driven vs reactive forms in Angular, easy examples with explanations.

HTTP Interceptor Angular

  • August 17, 2018

The Angular HTTP interceptor including examples for caching, setting authorization headers, modifying request headers, logging, and common reasons for the interceptor not working

The 5 Minute Guide to Making HTTP Requests in Angular

  • August 5, 2018

A 5 minute guide to making HTTP requests the right way in Angular. Learn how to use the HttpClientModule to make async GET, POST, PUT, DELETE calls. Quick examples with explanations

Elasticsearch in 5 Minutes

  • August 3, 2018

A 5 minute explanation of Elasticsearch including examples and if it's right for your project. Get exposure to Lucene and the ElasticSearch REST API.

JavaScript Observables in 5 Minutes

  • July 29, 2018

Quickly understand JavaScript observables. Implement the Observable class from scratch and understand what makes observables different from promises.

Java Collections In Depth

  • April 26, 2018

The ultimate guide to Java collections in depth, including the collection hierarchy, sets, lists, queues, deques, maps, etc. Examples of when to use which and why.

Numbers and Strings in Modern Java Programming

  • April 23, 2018

Everything you need to know about Numbers and Strings in Java, including the Number and String object wrapper class and examples on how to manipulate and work with numbers and strings in modern Java programmimg.

The Java Tutorial: Access Modifiers

  • April 10, 2018

A simple guide to understanding access modifiers in Java. Learn the basics behind private, public, protected and default acces modifiers. Learn when to use public vs private, etc.

The Java Tutorial: Control Flow

  • April 9, 2018

A simple introduction to control flow statements in Java. Learn how to make decisions with your code by using if..then, switch, for loops, while loops, etc. Learn when to use switch over if..else and more.

The Java Tutorial: Primitive Data Types

  • April 3, 2018

A simple introduction to primitive data types in Java. Get an easy explanation with a basic example for each of the 8 primitive data types in Java.

MongoDB Schema Design: The 2 Questions to Ask Yourself

  • March 14, 2018

The two most important questions to ask yourself when designing your MongoDB schema including how your app will query the data and how your documents will grow.

Best Answer: What is Apache Parquet?

  • March 13, 2018

Everything you want to know about Apache Parquet, including what is parquet, how parquet works, columnar formats, why use parquet, and key strenghts of the Parquet data format.

Scala | Lambdas and Higher Order Functions

  • March 9, 2018

Everything you need to know about anonymous and higher order functions, including what is an anonymous function, examples of anonymous functions, lambdas, and higher order functions in Scala.

Angular AOT vs JIT

  • March 7, 2018

Everything you need to know about AOT vs JIT and Angular including what is JIT, what is AOT, JIT vs AOT, the benefits of AOT over JIT, JavaScript payloads, and performance benefits of AOT.

Top 3 Most Important Things to Know About HBase

  • February 23, 2018

The top 3 things to understand about Apache HBase before using it with your Hadoop cluster. Learn about HBase and how it compares to RDBMS, HDFS, as well as it's column oriented structure.

Top 3 Reasons to Use React

  • February 21, 2018

The top 3 reasons why you should be using React, including the virtual DOM, components, and popularity compared to Angular and Vue.

Top 4 Reasons to Use Angular

  • February 20, 2018

The top 4 reasons to use Angular, including the CLI, MVC approach, consistency, and performance.

The Ultimate Guide to JavaScript Build Tools

  • February 20, 2018

The ultimate guide to modern JavaScript build tools, including task runners, gulp vs grunt, webpack vs browserify, and npm vs yarn.

4 Easy Steps to Using Webpack with Your Node.js App

  • February 13, 2018

The easiest way to get started with Webpack. Check out this basic example with explanations.

Scala Tutorial: Case Classes

  • February 8, 2018

Quickly understand the difference between a case class and a regular class in Scala with examples including what is a case class, case class vs regular class, case class methods, when to use a case class, etc.

Scala Tutorial: var vs val

  • February 7, 2018

Quickly learn the difference between val and var in Scala. Learn how to correctly assign variables in Scala with these basic examples.

Scala Tutorial: Using Options, Some, and None

  • February 7, 2018

An easy to understand tutorial on Scala Options including basic examples with explanations. Learn what optional values are, why they are useful, unwrapping option values and more.

Introduction to Scala: Scala vs Java

  • January 10, 2018

A quick look at the key differences between Scala and Java, including performance considerations and much more.

Introduction to SBT

  • December 13, 2017

A quick introduction to SBT including what it is, how it works, and examples of SBT project structure and build definitions.

An Introduction to Testing With Cucumber

  • December 1, 2017

An introduction to the Cucumber testing framework, including what it is, an explanation of BDD, and how Cucumber works with feature files and step files to create acceptance tests.

An Introduction to Browserify

  • November 29, 2017

An introduction to Browserify, including what it is, how it works, and the benefits of using Browserify with your JavaScript project.

What Changed With Vue 2?

  • November 29, 2017

A discussion surrounding the key features of Vue 2 and how they've allowed Vue to compete with React and Angular for JavaScript's top spot.

Vue vs React

  • November 28, 2017

A comparison of Vue and React, including key similarities and differences, strengths and weaknesses.

Introduction to JavaScript Linters

  • November 27, 2017

The ultimate guide to JavaScript linters including what is linting, how JavaScript linters work, the best JavaScript linters, JSLint, JSHint, JSCS, ESLint. A comparison of the top JavaScript linters used today.

Introduction to Apache Solr

  • November 22, 2017

An introduction to Apache Solr including definition, key features, how Solr works, and if Solr is right for your environment.

OLTP vs OLAP

  • November 22, 2017

The difference between OLTP and OLAP including definitions and examples of both.

Introduction to MongoDB Indexing

  • November 17, 2017

This is an introduction to indexing with MongoDb. We explore indexes including examples, types, performance, and best practices.

Choosing the Best Mobile App Development Tools

  • November 8, 2017

The ultimate guide to mobile app development tools including cross platform apps, React Native, Ionic, Xamarin, and the difference between cross platform apps and hybrid apps. Learn about progressive web apps vs native apps and which is right for your project.

An Introduction to Chef

  • November 7, 2017

The basics surrounding Chef, including what is Chef, the problems Chef solves, how Chef works, and the basic components behind Chef.

Why HBase?

  • November 3, 2017

A discussion on the benefits of using Apache HBase, including what is HBase, how HBase works, and advantages of using HBase with Hadoop.

Hive vs Impala

  • October 25, 2017

The difference between Hive and Impala, including when to use Impala vs Hive and performance comparisons.

The Apache Hive Metastore

  • October 18, 2017

A discussion on the Apache Hive metastore, including what it is, how it works, and configuring your Hadoop cluster for Hive.

CSS Layouts: Box Model vs Flexbox vs Grid

  • October 17, 2017

A comparison of the different CSS layout features including the advantages and disadvantages of box model, flexbox, and grids.

git merge vs. git rebase

  • September 21, 2017

The key differences between git merge and git rebase.

Hadoop MapReduce vs Spark

  • September 6, 2017

A discussion on the advantages of using Spark over MapReduce, what makes Spark faster than MapReduce, and a comparison on Spark vs MapReduce performance.

Apache Spark: What is RDD?

  • September 6, 2017

A quick explanation of RDD and what it means to Spark and distributed data processing.

Hadoop Data Formats: Avro or Parquet?

  • September 5, 2017

A look at Hadoop's supported data formats, including Avro and Parquet, which to use, and why.

Hadoop HBase vs Cassandra

  • September 5, 2017

The difference between HBase and Cassandra including which to use and why.

CAP Theorem Explained

  • September 5, 2017

A simplified introduction to CAP theorem and how it applies to the database engines we use today.

Why Angular is Ideal for Enterprise

  • September 4, 2017

A discussion on why Angular is the best framework for enterprise, including why a framework is better, why TypeScript is easier for enterprise, Angular testing frameworks, server side rendering, etc.

Change Data Capture (CDC) and Why It's Important

  • September 1, 2017

A discussion on the basics of Oracle CDC connections and how they are used to effectively capture changed data in Hadoop and other big data platform environments.

Angular 4 vs. React

  • August 30, 2017

A discussion surrounding the latest Angular 4 vs React, including which is better, which to use, and why. Understand differences in learning curves, community support, and fundamental differences between Angular and React.

Hive vs HBase

  • August 16, 2017

A discussion on Apache Hive vs Apache HBase, including what is hive, what is hbase, when to use hive, when to use hbase, and performance comparisons.

What is Apache Spark?

  • August 10, 2017

A discussion on Apache Spark including what is Apache Spark, why spark makes sense, and using spark vs hadoop with big data.

MapReduce Quick Explanation

  • August 9, 2017

A quick explanation of mapreduce, including what is mapreduce, how mapreduce works, and a mapreduce example for getting started.

An Introduction to Apache Hadoop

  • August 8, 2017

A quick introduction to Hadoop including what is Hadoop, Hadoop common utilities, HDFS, MapReduce, Yarn, and the basics of Hadoop architecture. Learn about node managers, resource managers, application masters and more.

Angular 4 Change Detection

  • July 30, 2017

A discussion on Angular 2 change detection, including angular 2 change events, how change detection works in angular 2, angular 2 manual change detection and onPush

Angular 4 vs Angular 2

  • July 21, 2017

A look at what's new in Angular 4, how it's different than Angular 2 and if you sould upgrade your Angular App to 4.

Free SSL with Let's Encrypt and Node.js

  • July 11, 2017

A tutorial on free SSL certificates with Heroku, Node.js, and let's encrypt. A quick tutorial on generating free SSL certificates with SSL and Node.js.

NodeJS MongoDB Tutorial

  • July 11, 2017

Getting started with NodeJS and MongoDB. A quick start tutorial on using Node.js with MongoDb with a complete example.

Writing Middleware for Express & Node.js

  • July 11, 2017

A tutorial on writing Express middleware

An Introduction to Socket.io

  • July 11, 2017

A tutorial based introduction to using Socket.io with Node.js

Testing AngularJS with Jasmine & Karma

  • July 11, 2017

A quick guide to getting started with Jasmine and Karma.

AngularJS Testing Tips and Tricks | ng-html2js

  • July 11, 2017

A quick guide to using the ng-html2js plugin with Karma.

$httpBackend | Quick Tutorial With Example

  • July 11, 2017

Great explanation of the $httpBackend service

Mass Tweet Your Followers With Node.js

  • July 11, 2017

How to mass tweet your followers using Node.js

Android Linear Layout Example

  • July 11, 2017

Explore the basics of the Android linear layout, including a fully working example for getting started.

Quick Start | React

  • July 11, 2017

A quick tutorial for getting started with react

Quick Start | React Components

  • July 11, 2017

A quick tutorial for getting started with React components

Quick Start | Webpack

  • July 11, 2017

Learn to use Webpack to bundle all your modules and static assets quickly and easily.

An Introduction to ES6 Classes

  • July 11, 2017

An introduction into javaScript es6 classes, es6 class consttructor, es6 class properties, es6 class methods, and es6 class private methods.

A JavaScript Guide to Java

  • July 11, 2017

A look at the key differences between Java and JavaScript, including interpreted vs compiled languages, runtime environments, the browser vs the JVM, defining variables, functions, access modifiers, classes, objects, hash maps, arrays, and loops. See examples of how each language implements common programming utilities and techniques.

MongoDB Projections

  • July 11, 2017

A quick tutorial on MongoDb projections including use cases and examples. Learn the basics of MongoDb projections.

Java For Beginners

  • July 11, 2017

The ultimate guide to getting started with Java for beginners. Learn how to get started programming with Java with a Hello World Java example. Learn how to write and compile a simple Java class in this beginner tutorial.

MEAN App with Angular 2 and Webpack

  • July 11, 2017

A basic tutorial for using Angular 2 with Webpack and the MEAN stack.

Quickstart | Angular 2

  • July 11, 2017

A basic example for getting started with Angular 2

Spring Boot Tutorial

  • July 11, 2017

A quick start Spring Boot tutorial

Creating Your First Angular 2 Components

  • July 11, 2017

A tutorial on angular 2 components, angular 2 component examples, creating angular components, and writing es6 classes.

Angular 4 Directives

  • July 11, 2017

A tutorial on Angular 4 directives including Angular 4 directives vs components, angular 4 directive example, angular 4 custom directive, etc.

Angular 4 Services Tutorial

  • July 11, 2017

A basic tutorial with an angular 4 services example discussing angular 4 service singleton, service constructors, etc.

Hadoop Environment Setup

  • July 11, 2017

A quick tutorial for setting up hadoop and hadoop installation on linux

Hadoop Configuration

  • July 11, 2017

A quick guide to configuring your Hadoop cluster. Learn about the difference between standalone, pseudo-distributed and fully-distributed mode. A quick tutorial including examples of hdfs-site.xml configuration, yarn-site.xml, mapred-site.xml and verifying your Hadoop configuration.

Linux Users, Groups, and Permissions

  • July 11, 2017

Everything you need to know about Linux users, groups, and permissions. Learn about Linux users including system users and regular users, switching to the root user, adding users, removing users, the difference between sudo and su, changing permissions, changing ownership with chown.

Hadoop Getting Started With HDFS

  • July 11, 2017

A quick tutorial on using HDFS, including HDFS namenodes, datanodes, blocks, starting and stopping HDFS, and HDFS basic commands.

Hadoop YARN Introduction

  • July 11, 2017

A quick introduction to Hadoop Yarn, including what YARN is, the role it plays in Hadoop, and the improvements over classic MapReduce.

Hadoop MapReduce Example

  • July 11, 2017

A walkthrough of the WordCount MapReduce application including basic example with code walkthrough. Perfect for getting started with Hadoop MapReduce

Hive Partitioning

  • July 11, 2017

Everything you need to know about partitioning in Hive, including creating, adding, and loading with partitions.

MongoDb Schema Design

  • July 11, 2017

Everything you need to know about MongoDb schema design, including one-to-many, two way referencing, and denormalization.

What is Avro?

  • July 11, 2017

An introduction to Avro, including what is Avro, how Avro works, Avro schema example, and Avro vs Json.

Java Generics and Type Inference

  • July 11, 2017

A quick introduction to Java generics including what they are, examples of generic methods and generic classes, and how they relate to type inference.

Bash Tutorial: getopts

  • July 11, 2017

An introduction to parsing command line arguments with the getopts command including parameters, multiple arguments, and error handling with examples.

Apache Kafka Tutorial

  • July 11, 2017

An introduction to Apache kafke, including what is kafka, kafka architecture, topics, partitions, a kafka tutorial, a kafka producer example, and a kafka consumer example

Optimize JavaScript for the V8 Engine

  • June 20, 2017

A quick guide to writing JavaScript that is optimized for the V8 engine. Learn about what makes the V8 engine different and how JavaScript runs efficiently on V8.

JavaScript Performance Tips

  • June 15, 2017

An overview of quick tips for writing JavaScript that follos best practices. Write faster and improve page load times with these easy fixes.

The V8 JavaScript Engine

  • June 14, 2017

We've all used Google's V8 engine. The V8 engine fules both the web and the dev tool we use every day. Learn about the V8 engine.

Why NOT to Use React

  • June 13, 2017

React is a great option for front-end developers, but sometimes it may not always be the best choice. In this article, we discuss the reasons for not using React.

Groovy | A Quick Glance

  • June 8, 2017

The ultimate guide to getting started with Groovy including what exactly is Groovy and why you should use Groovy with your Java based projects. Learn about the benefits Groovy adds to the Java ecosystem and understand why Groovy is a great addition to Java.

The Problem with Passwordless Authentication

  • June 7, 2017

An in-depth look at the idea of passwordless authentication, including the pros and cons and which is right for your app in today's world.

Node.js Performance Tips

  • June 6, 2017

A quick discussion on Node.js performance and what you can do to improve performance with your Node.js app.

Problems with Angular

  • May 11, 2017

Explore the problems with the original AngularJS and how alternatives like React, Angular 2, and Vue are working to solve the original Angular's pitfalls.

yarn vs npm

  • May 3, 2017

The key differences between yarn and npm including the problems with npm, versioning, non-determinism, performance, and the improvements over npm made with yarn. Learn why yarn is faster, lock files, global cache, etc.

How Does TLS Work?

  • May 2, 2017

An explanation of the SSL/TLS handshake process and how TLS makes a secure network connection possible.

Git Workflow Best Practices

  • May 1, 2017

Git workflow is important to collaboration. In this article, we explore the different types of git workflows, including centralized workflow, feature branch workflow, gitflow workflow, and forking workflow

Helmet and Express.js

  • April 28, 2017

Exploring the middleware functions that make up Helmet and how they work to keep your Express.js app secure. Learn about Helmet and known security vulnerabilities it protects against with Express.

Is My Express App Secure?

  • April 26, 2017

Is your express.js app secure? This article gives you some quick pointers on keeping your express.js web app secure and explains existing vulnerabilities with express.js.

SSL vs TLS

  • April 26, 2017

SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are fundamental to Internet transport security and the misconception surrounding them.

TypeScript or Babel?

  • April 17, 2017

TypeScript vs Babel - Which to use and why.

Spring Boot vs Node.js

  • April 10, 2017

Spring Boot vs Node.js, which to use and why.

What is Functional Programming?

  • April 7, 2017

A quick introduction to the functional programming paradigm.

6 Tips To Create HTML Email

  • March 31, 2017

6 tips for creating HTML email including inline styles, tables, CDNs, web safe fonts

Problems with MongoDB

  • March 20, 2017

Potential problems and issues with using MongoDB

MEAN vs MERN Stack

  • March 18, 2017

A quick glance at the MEAN and MERN stacks, including what's the difference and which is right for you. Understand the MEAN stack and the MERN stack and how Angular and React compare.

Quick Tips | Responsive Web Design

  • March 11, 2017

quick CSS pointers for making responsive web design easier

Easy Steps to Understanding SQL

  • March 10, 2017

A guide to understanding SQL operations

iOS vs Android App Development in 2017

  • March 5, 2017

developing for iOs versus Android in 2017.

Top Benefits of Unit Testing

  • February 15, 2017

The main reasons why unit testing is a must for every developer

Choosing Angular 1 Over Angular 2

  • February 9, 2017

Why Angular 1 can still be the best choice

Choosing the Right Database for 2018

  • February 9, 2017

Learn which database is right for your project, including what you will do with the data, how much data you will be working with, etc. Understand the difference between RDBMS and NoSQL databases and which is right for you.

Flux vs MVC: Best Explanation

  • December 19, 2016

Great explanation of the Flux architecture and how it compares to MVC

Choosing the Right JavaScript Framework for 2018

  • December 17, 2016

Top JavaScript frameworks for 2017

JavaScript var let const

  • December 13, 2016

Var let const | which to use and why

Express Error Handling: Tips & Tricks

  • December 12, 2016

a quick example with tips and tricks for writing express error handling middleware

Angular & Performance: Best Practices

  • December 8, 2016

Best practices for avoiding Angular 1 performance issues.

Tips and Tricks - Using Web APIs

  • December 6, 2016

Exploring the wonderful wide world of web apis including common use cases for using web APIs like Twitter. An explanation of data limits, authentication, and costs of using popular web APIs for your web application.

Firebase or Heroku?

  • December 3, 2016

Best explanation. Which to use and why.

Top ES6 Concepts for 2018

  • November 30, 2016

The ultimate guide to getting started with ES6 including new features, promises, template literals, classes, arrow functions, etc. Learn what makes ES6 so powerful and why it is becoming the new standard for JavaScript development.

Angular 1: Properly Using Controllers

  • November 29, 2016

A clear explanation of Angular JS controllers and their place in the client side framework.

MVC vs MVVM

  • November 18, 2016

A discussion on MVC and MVVM software design patterns

Time for Angular 2?

  • November 15, 2016

A discussion on Angular 2 and how it compares to Angular 1

Page Rendering: Client Side vs. Server Side

  • November 14, 2016

The pros and cons of rendering pages client side vs server side

Should I Use MongoDB or MySQL?

  • November 10, 2016

A comparison between SQL and NoSQL databases

Learn ReactJS Introduction

  • April 9, 2020

Quickly learn the basics of getting started with ReactJS including what is ReactJS, how ReactJS is different than other libraries, unidirectional data flow, the virtual DOM, and the advantage of using ReactJS.