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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.

224 articles · Page 12 of 23

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  1. 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.

    Node.js

  2. 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.

    Node.js

  3. 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.

    TypeScript

  4. 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.

    TypeScript

  5. 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.

    Machine Learning

  6. '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.

    Node.js

  7. Question mark in Angular expressions

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

    Angular

  8. How do you extract POST data in Node.js?

    Often times when working with Node.js based web applications we are faced with an option to handle data sent from a form. In this article we'll take a look at how to extract POST data in Node.js

    Node.js

  9. File upload with Angular and Restify (Tutorial)

    In this tutorial we'll learn how to upload files from an Angular5 application to a Node.js REST API that runs using Restify. For the file upload functionality we'll use the File Web API, without relying on a third party component.

    Angular

  10. Natural Language Processing with NoSQL and JavaScript

    In this article we are taking a look at how to apply a branch of Machine Learning - Natural Language Processing - to do sentiment analysis on unstructured text with JavaScript and NoSQL.

    Machine Learning