I recently was asked to help on a project where the team was trying to get the test coverage for e2e tests also known as component tests. I initially tried to say that component tests run on the actual application process and not in the context of a test/source file. So the app is a black box to the running tests and can’t be instrumented for getting coverage.

I was wrong!

Running a java app: basics

The way a Java app runs is quite similar to a NodeJS app. A bundle in Java world is called a jar. …


OMG, I know right!

This was my reaction too when I took this path. I’ve been a frontend engineer for as long as I can remember and I absolutely love it to the core.

When I started my career in 2010 and learnt a handful of functions of jQuery with which I could add, remove or animate stuff on the browser screen it almost felt like magic. I have never been more excited to work/debug web apps within a browser, it feels home.

Last year I happened to work on projects which were infra heavy, and they introduced me to technologies like Docker and…


Note-taking is a highly underrated ability to preserve context over time. You might have heard about RoamResearch and Foam (which is similar but open source and lets you write notes, categorize them, link them all from inside VSCode).

It also lets you publish them for easy viewing on a browser.

I recently went down this rabbit-hole to try and find the best setup for it. I liked the plain foam-template but I wanted the published version to look like a Digital Garden.

What’s a digital garden?

Digital garden is a collection of notes, that gets refined over time. You link your notes and thoughts…


My ebook cover :)

I recently wrote my first e-book Building JavaScript A+ Promises in 10 steps and self-published it on both Gumroad and Amazon.

If you asked me a month back that would I ever write a book?, I would have answered with a resounding NO. As I thought writing and publishing a book would be so much work and you’d need editors/reviewers and publishing houses to back it!

JavaScript Promises have always been a fun topic for me and I'd always try and experiment with its gotchas and different ways you can use it to accomplish my use-cases. …


Don’t believe me??

Redux has been infamous lately for bringing a lot of boilerplate and ceremony, which we’ll see isn’t quite true. It really shines when you add Types to it but writing Types take time. And who has time when you’ve to ship a ton of features?

I’ve been doing some experiments on how to reduce the types, plus all third-party dependencies to something simple and yet tight.

Actions and their problems

Redux actions are plain objects which are sent(dispatched) to the store and ultimately end up changing state via reducers. …


PWAs have been gaining popularity for quite sometime now. Crafting a good, performant experience is continuous journey.

So before even embarking on the PWA journey, we should invest time on setting up the development workflow.

This separates great apps from apps that were great once.

For example let’s consider a GitHub repository which has Hacker News front end implemented. This is not a PWA yet. It’s made with React and Redux.

I want every Pull Request on this repository from now on to be tested and audited for performance issues.

How do I do that? Using a CI server, like…

Ankeet Maini

junior dev, always.

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