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

Technical articles on AI integration, agents, agent harnesses, MCP, web technologies, and emerging tools. Working notes from a Google Developer Expert with 25+ years of building and teaching.

  1. Quién es full stack (web) developer?

    En este artículo vamos a tratar de responder una pregunta muy importante: quién es un desarrollador full stack?

  2. Binding HTML with Angular

    In this article we are reviewing what it takes to render HTML content inside Angular templates, including a word of caution regarding unsafe content.

  3. constructor vs ngOnInit in Angular

    A frequently asked question in Angular2+ is the difference between constructor() and ngOnInit() inside components. This article gives an answer.

  4. How to find the version of an installed npm package?

    In this article we are reviewing three ways to get the version numbers of local or global npm packages installed.

  5. How to read environment variables in Node.js?

    Storing secrets, usernames and passwords can be done in Node.js via environment variables. We'll take a look at how to manage these in this article.

  6. Typescript: Interfaces vs Types

    Interfaces and type aliases both offer contracts to fulfil in TypeScript code. At first they may look the same however there are some key differences between the two.

  7. Cannot redeclare block-scoped variable 'name'

    In this article we take a look at how to resolve the "[ts] Cannot redeclare block-scoped variable 'name'." error raised by TypeScript.

  8. Unsupervised Machine Learning with JavaScript

    In this article we are taking a look at an unsupervised machine learning and using it we'll cluster our sample dataset.

  9. 'Unexpected Token Export' error

    When trying to utilise the ES2015 export/import statements (aka ES2015 module syntax) in Node.js we are presented with the 'Unexpected Token Export' error. There's a reason why this error appears and in this article we'll investigate why this is happening.

  10. Question mark in Angular expressions

    Angular comes with a safe navigation operator that guards against 'null' and 'undefined' values in property paths.