Best Online React Video Tutorials (2020)
An up-to-date list of online React video tutorials.
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Best JavaScript Books (2019)
The best books for learning Python.
Hello, World with Express and JavaScript
Build a basic web application with JavaScript, Express, and Node.
JavaScript Algorithms: Mergesort
An overview and code example of Mergesort in JavaScript.
JavaScript Algorithms: Quicksort
An overview and code example of Quicksort in JavaScript.
JavaScript Data Structures: Array
An overview and code example of an array in JavaScript.
JavaScript: Function Expressions vs Declarations
Understand how and when to use a function expression vs a function declaration.
JavaScript: Prototypal Inheritance
A guide to understanding prototypal inheritance in JavaScript.
JavaScript: Pure Functions
A guide to understanding pure functions in JavaScript.
JavaScript: Find a Number in an Ordered Array
3 ways to find a number in an ordered array with JavaScript
JavaScript: Reverse a Linked List
Iterative and recursive solutions.
JavaScript Guide
A detailed quick summary on JavaScript
Meteor Hosting Options
Meteor is a fast and accessible framework for building Node.js apps. It makes building MVPs and learning web development very accessible. There are multiple Meteor hosting options currently available.
React Counter Button
Build a counter button watch in React.
React Clock
Build a digital clock that updates every second.
React Stopwatch
Build a stop watch in React.
React Real-time Inputs
Build an input box that outputs in realtime.
A Complete Introduction to React: Build a Beatles Voting App
Build a basic voting app for your favorite Beatle to learn about props, events, and state in React.
JavaScript Callback Functions Explained
An explanation that doesn't use jQuery, setTimeout, etc.
JavaScript Closures Explained
A plain English description of closures, the for loop gotcha, and how to make private methods.
React Events & Forms: Build a Real-time Input
Make a real-time form input in React.
JavaScript: Merge Two Sorted Arrays
How to efficiently merge two sorted arrays in JavaScript.
JavaScript: Stock Prices Problem
Write a function that takes an array of stock prices and returns the best profit you could make from one purchase and one sale.
Best Online JavaScript Video Tutorials (2019)
An up-to-date list of online JavaScript video tutorials.
JavaScript Three Sum: Find the Highest Product of Three Numbers
Find the highest product of three numbers in a JavaScript array.
JavaScript Two Sum: Find the Highest Product of Two Numbers
Find the highest product of two numbers in a JavaScript array.
JavaScript: Compute the nth Fibonacci Number
Learn multiple ways to calculate a Fibonacci number in JavaScript.
JavaScript: Convert Array to a String
Learn 4 ways to convert an array to a string in JavaScript.
JavaScript: Duplicate an Array
Learn multiple ways to duplicate an array in JavaScript.
JavaScript: Merge Two Arrays
Learn multiple ways to merge two arrays in JavaScript.
JavaScript: parseInt and map
Understand why parseInt() and map() interact strangely on a JavaScript array.
JavaScript: Print Odd or Even Numbers
Print out all odd or even numbers in a range.
JavaScript: Remove Duplicates from an Array
Learn multiple ways to remove duplicates from an array in JavaScript.
JavaScript: Sort an Array of Strings or Numbers
Learn the two classic ways to sort an array of strings or numbers
JavaScript Event Loop
Tutorial on JavaScript's call stack, callback queue, and event loop.
JavaScript Range Array Function
Python has a very handy range array function that I find myself using all the time. Unfortunately JavaScript does not, but we can quickly implement our own functionality.
JavaScript: Map, Filter, Reduce
JavaScript’s built-in map, filter, and reduce array methods are invaluable to a modern JavaScript developer. First introduced in 2011, these methods go way beyond the traditional for loop for traversing...
Currying in JavaScript
Currying is a fundamental tool in functional programming, a programming pattern that tries to minimize the number of changes to a program’s state (known as side effects) by using immutable...
JavaScript: var, let, and const
A tutorial on the three ways to declare variables in JavaScript ES6+.
JavaScript Scope and Closures
Closures and scope are fundamental parts of JavaScript but often poorly explained and therefore the source of confusion to many developers. This is my take on explaining them to someone...
JavaScript Double Negate (aka !!)
JavaScript features the odd but commonly used double negate operator !!, which is used to create a Boolean from a value.
JavaScript Tilde ~ (Bitwise Not operator)
In JavaScript, the tilde ~ Bitwise NOT operator is commonly used right before an indexOf() to do a boolean check (truthy/falsy) on a string.
JavaScript: var keyword explored
An overview of the traditional var keyword for declaring variables in JavaScript.
JavaScript Temporal Dead Zone
The Temporal Dead Zone is a behavior in JavaScript that occurs when declaring a variable with the let and const keywords, but not with var. A shorthand you’ll often hear...
JavaScript Hoisting
Hoisting is a behavior in JavaScript where variable and function declarations are “hoisted” to the top of their scope before code execution. This can result in confusing behavior, such as...
Node Express Tutorial, part 1
In this tutorial you’ll learn how to build a simple web app with Node, Express, and MongoDB.
JavaScript Arrays: slice vs splice
In JavaScript, it is easy to confuse slice and splice. I certainly do it all the time. They have similar names but act in very different ways. Here’s a quick...
JavaScript Arithmetic Operators
JavaScript’s arithmetic operators perform addition (+), subtraction (-), multiplication (*), and division (/). Mozilla has a great overview of them, but it fails to mention any of the edge cases...
Install Node.js and NPM on a Mac
JavaScript is one of the most popular programming languages in the world. It is built into most web browsers and used to add interactivity to websites. With Node.js, a “JavaScript...
Install Node.js and NPM on Windows
JavaScript is one of the most popular programming languages in the world. It is built into most web browsers and used to add interactivity to websites. With Node.js, a “JavaScript...
Node Rest API Tutorial
This tutorial will show you how to build a simple REST API with Node.js and Express.js, a popular and lightweight framework for building Node.js apps.
NextJS/Zeit for Total Beginners
NextJS is a very interesting, minimalistic framework for server-rendered React applications. If you’re new to React or NodeJS in general, the current documentation for NextJS can be confusing.
Teaching Meteor to Beginners
Summary: Meteor is an incredibly accessible web framework for beginners. Its ease of setup, deployment, and Javascript-only configuration are game changers compared with competing frameworks like Django or Ruby on...
Meteor Developer Login Accounts
Meteor has a Developer Accounts login package similar to Google or Facebook login. Here’s a quick tutorial to get you up and running.
Meteor Anchor Tags
Anchor tags don’t work in Meteor. This is a known issue.
Meteor Stripe Checkout
Note: This tutorial covers how to implement Stripe Checkout for versions of Meteor 1.1 and earlier. It does not work for the most recent version of Meteor.