Fraser Hamilton

Using setTimeout and setInterval to control the execution of code at specified time intervals

Comparing arrays without the need for utility libraries

Swapping array elements without needing a temporary variable

What is Automatic Semi-Colon Insertion (ASI) and what are the rules that govern it?

Randomizing the order of elements in an array using the modern version of the Fisher-Yates shuffle

Getting to grips with the max and min aggregate functions in Postgres

Using the AVG aggregate function in SQL to get average of the values of a column

Dot notation versus brackets, which is preferable and why?

Using the SUM aggregate function in SQL to sum the values of a column

Get a number that represents a point in time by the number of ms that have passed since the Unix Epoch

Learn how to use regular expressions to validate an email address

Using string.prototype.includes to check if a substring exists

Redirecting to pages programmatically using window.location

Parsing, validating and manipulating dates in JavaScript with Day.js

Removing duplicates for a JavaScript Array with ES6 Set

Give your Website a fresh look using Google Web Fonts

What convention should be used when naming databases, tables, and fields?

Managing state in React functional components with hooks

Consistent, easy and automatic code formatting for you and your team

Loops explained: for loops, while loops, control flow

The difference between undefined and null in JavaScript

Build a simple Pomodoro timer extension in 25 minutes

Learn how to use Array.prototype.reduce to group an array of objects by key

Learn how to reverse a string in Javascript using the Array.prototype methods

Demystifying how the value of this is assigned in different contexts

Generating custom error messages using throw

Getting to grips with one of the harder to understand Array.prototype methods

Using typeof & instanceof methods to check the type of any variable

How to perform string interpolation using template literals

Getting to grips with the file at heart of many codebases in the JavaScript ecosystem

Getting to grips with the ECMAScript module system

A brief look at what evaluates to false in JavaScript

How to declare default function parameters in JavaScript

Getting to grips with the ECMAScript module system

Manage multiple installations of Node.js on Windows

Learn how to get a random sample of n elements from an array

Learn how to get a random element from an array in JavaScript

Create a utility function to partition an array based on a condition in vanilla JS

Learn how to check if a value is in an array using includes()

Generate an array of values that you can then manipulate with map, forEach etc

Learn how to flatten an array in JavaScript

Learn how to reverse an array in Javascript using the Array.prototype method

Learn how to combine two arrays into a new array

Learn how to create a new object that combines two objects properties

Authentication in your react native apps made easy

The three methods of variable declaration in JavaScript