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

Technical articles on building with LLMs: agents and agent harnesses, MCP, evaluation, and the web technologies underneath. Worked examples with code, written for working developers.

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  1. Question mark in Angular expressions

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

  2. 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

  3. 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.

  4. 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.

  5. Angular - Http vs HttpClient

    A new, more robust HttpClient is available as of Angular 4.3. In this article we are discussing its main changes with code examples.

  6. Securing a REST API

    In this article we are discussing how to secure a REST API using JWT (JSON Web Tokens).

  7. Angular - Promise vs Observable

    An article explaining the differences between Promises and Observables in Angular.

  8. Factory Pattern in TypeScript

    This article discusses how to apply the Factory Pattern in a TypeScript environment

  9. What is semantic versioning?

    In this article we are discussing what semantic versioning is.

  10. Async/await in Node.js

    `async/await` is a great way to create asynchronous code and Node.js now supports these operators out of the box.