The Internal of the TypeScript Compiler Explained — After working with TypeScript for a few years, I felt I had a good understanding of the language except I don’t really know how the compiler works internally. Recently, I got a chance to dig into the area that I knew very little about, and would like to share with…

What I’ve learned from using TypeScript’s type system — TypeScript is about types. It’s a strongly typed language with powerful compile-time type-checking. At the same time, its static typing is optional, so it’s compatible with JavaScript. I’ve been working with TypeScript for more than three years. Having learned a lot during this journey, but I still have the nice…

Everything you want to know about the Record utility type — Record is one of the TypeScript utility types and has been available out of the box since version 2.1. I have to admit that I was a little confused when I read the official definition for the first time: “Record<Keys,Type> Constructs an object type whose property keys are Keys and…

A cleaner, loosely coupled, and more maintainable solution — To build a solid RESTful API, there are well-established best practices and design patterns we can use. In this article, I will talk about how to use the Decorator pattern to consume RESTful API in Angular. HttpClient Service To consume a REST API in Angular, we can use HttpClient . HttpClient Service…

Build a personal blog and publish to Github pages for free — Over the past few years, I wrote a number of technical blogs at Medium, LogRockets and Twillio. Recently, I decided to create a personal website, so I can collect all the articles in one place. After some research and half a day’s work, I got the personal blog up and…

A Deep Dive into TypeScript Recursive Type Aliases — Prior to TypeScript 3.7, a recursive type reference will cause the TypeScript compiler throws a circular references error message. Developers have to make a workaround (i.e. using an interface) to achieve a recursive reference. Recursive type is introduced since TypeScript 3.7. It allows the reference to the type from its…

A complete guide on setting up a proxy in Angular for API calls behind a corporate proxy or with windows authentication — Angular Developers use Angular CLI for local development. One of the most common needs is to set up a proxy in the local dev environment to avoid CORS error when the Angular app sends an HTTP request to an API residing on a different domain. …

Complete Guide on Install and Configure Trilium Notes App using Trilium, Nginx, Docker, and Oracle Cloud — Trilium Notes is an open-source note-taking App for building a personal knowledge base. It is a surprisingly powerful tool, including some impressive features like mermaid charts, WYSIWYG note editing, syntax highlighting, full-text search, etc. Trilium can be installed on a desktop or on your own server. The most common approach…

Complete guide and tricks on how to connect to the MySQL instances remotely — In my previous article, I wrote about hosting a site on Oracle always free offering. The Oracle always free is a generous offer. One of the eligible free services is: Arm-based Ampere A1 cores and 24 GB of memory usable as 1 VM or up to 4 VMs with 3,000…