Tutorials covering the frameworks and libraries that shape how modern applications are built — Angular, React, Vue, and the ecosystem tools that surround them. Each chapter is standalone, built around real examples and verified facts.
Angular CLI builders are the engines behind every ng command. When you run ng build, ng serve, ng test, or ng lint, the CLI reads the workspace configuration, resolves the target to a builder, and invokes it with the options from angular.json. A builder is a function that receives options and a context and returns…
React does not have a native canvas element. The <canvas> tag is a DOM element, and the drawing context is an imperative API that sits outside React’s declarative model. Interactivity—detecting a click on a shape, hovering over a pixel, dragging a node—requires translating DOM events into coordinates that the canvas understands, and then deciding whether…
Migrating from AngularJS to modern Angular is a significant architectural shift. AngularJS (1.x) reached its official end of life on December 31, 2021, which means it no longer receives security patches, bug fixes, or official support. The migration is not a simple version upgrade; it involves moving from a scope-based, controller-driven model to a component-based…
react-konva is a React renderer for Konva, the 2D canvas scene graph library. The relationship is the same as React DOM and the browser DOM: you write components like <Rect> and <Circle>, the reconciler creates the corresponding Konva nodes, and Konva draws them onto a single <canvas> element . The library’s value is not that…
Angular releases a new major version every six months, and each major version carries breaking changes, deprecations, and new APIs. Migrating between versions is not a single event but a recurring discipline. The framework provides ng update to automate most of the mechanical work, and the Angular Update Guide provides a checklist of breaking changes…
The Web Audio API is a graph-based audio processing system built into the browser. It is not a replacement for the <audio> element; it is a complement to it, the way <canvas> complements <img>. When the requirement is playing a track, the media element is simpler. When the requirement is processing, synthesizing, analyzing, or routing…
Angular 17 introduced a new built-in control flow syntax that replaces the structural directives *ngIf, *ngFor, and *ngSwitch with blocks prefixed by @. The new syntax is baked into the template, which means CommonModule is no longer required for these directives, and the compiler can pre-compile the blocks for better performance and type checking. This…
A micro-frontend is an architectural pattern where a large application is composed from independently developed, independently deployed frontend fragments. Web Components are a browser-native mechanism for encapsulating markup, styles, and behavior into a custom element. The combination is appealing because it promises framework-agnostic composition: a React shell can host a Vue micro-frontend, or a legacy…
Upgrading a legacy Angular application is rarely a single task. It is a sequence of decisions: which Angular version the application is on, whether the codebase still uses NgModules or standalone components, whether the build system is the old webpack-based one or the new esbuild-based one, and whether the application was originally written in AngularJS…
Every React build is a sequence of AST transformations. JSX becomes React.createElement or jsx() calls, TypeScript types are stripped, and the React Compiler inserts memoization. The tools that perform these transformations—Babel and SWC—expose plugin APIs that let developers add their own passes to the pipeline. A custom plugin can inject instrumentation, rewrite imports, enforce architectural…