Notes on AI, agents, web technologies, and building with LLMs

Introduction to RxJS and Observables

What is RxJS and what are observables? A gentle introduction to these terms and the technology that drives them.

Promises in JavaScript

Promises in JavaScript are a powerful concept that allow us to write asynchronous code in a synchronous fashion with better error handling than callbacks.

Arrays and Objects in ES2015

A range of new capabilities have been added to JavaScript with ES2015 that helps us work with arrays and objects.

Generics in TypeScript

TypeScript introduces Generics which allow us to use reusable components within our applications with ease.

Functions in TypeScript

Functions in TypeScript work in exactly the same way as functions in ES2015, allowing us to use rest and default params and fat arrow functions in combination with data types.

Rest Parameters, Spread Operator and Default parameters for Functions

Rest Parameters, Spread Operator and default parameters for Functions are all great additions for JavaScript ES2015.

Template Literals in ES2015

Promise anti-pattern

JavaScript promises have an important anti-pattern when it comes to using .then() with an error handler versus when using .catch() for handling errors.

Classes in TypeScript

Classes in TypeScript really extend JavaScript's (ES2015) class functionality and add their support for types and member access.

Classes in ECMAScript 2015

If you have worked with JavaScript before you may have heard the expression 'prototypal inheritance' or that JavaScript is a 'prototype' based language. As of ES2015 we can use the class keyword which adds syntactic sugar over the prototypes.