About me

Software engineer in Test(SDET).

Certified Node.js Application Developer(JSNAD).

I am a SDET enginner and use typescript, node.js to solve every-day tasks!

In my free time, I build some tools and experiment with new technologies/libraries.

Posts by Vitali Haradkou

New blog design

It's time to grow the blog in UI style. Make it more mature and add new features...

V Vitali Haradkou
December 12, 2024
5 min read

blog
web
design
update
RSLike@3. Well-known Symbols and more...

Not long ago, I released a library that was meant to eliminate errors related to null and undefined. Honestly, I decided ...

V Vitali Haradkou
April 12, 2024
10 min read

rslike
typescript
library
update
comparison
Playwright & Prometheus. Send your metrics in real-time

How we use prometheus to send metrics from playwright tests

V Vitali Haradkou
December 18, 2023
5 min read

library
playwright
reporter
playwright-prometheus-remote-write-reporter
Zod is dead. Long live ajv-ts!

Why ajv-ts is a future! And how it solves problems on the current project?

V Vitali Haradkou
September 29, 2023
7 min read

json-schema
ajv
zod
ajv-ts
library
Bun: Is it fast for test automation?

Is Bunjs runtime faster than package manager scripts? Let's check it out and compare bun vs pnpm vs yarn vs npm!

V Vitali Haradkou
September 10, 2023
5 min read

comparison
bun
nodejs
performance
k6: How to test you signalR websockets

At this article I'll share how to load test backend which was written using signalR library.

V Vitali Haradkou
September 8, 2023
4 min read

load testing
performance
k6
javascript
@rslike/dbg: Debug your variables like never before!

At this article I'll share about printing debug information

V Vitali Haradkou
September 5, 2023
3 min read

library
rslike
update
@rslike/cmp: compare your structures like a pro

At this article I'll share about comparing your data structures

V Vitali Haradkou
August 23, 2023
2 min read

library
rslike
update
It's done! Rust-like API in your JavaScript code

Library witch handle undefined behavior

V Vitali Haradkou
August 8, 2023
3 min read

library
rslike
Folder Uploader design

At this article I’ll show how I was design `<FileUploader />` react component with directory support.

V Vitali Haradkou
June 2, 2023
5 min read

react
input
web
Using dotenv-guards library for safe environment variables

At this article I'll share about dotenv-guards library and how it solves our issues in current project

V Vitali Haradkou
May 31, 2023
6 min read

dotenv
typescript
ts
library
Using JSX for telegram bots

At this article I'll share how to use JSX markup with @tlgr/fmt library

V Vitali Haradkou
May 31, 2023
5 min read

react
preact
telegram
My experience of using zx library

At this article Ill share about zx library and how it solves our issues in current project

V Vitali Haradkou
September 6, 2022
5 min read

zx
refactoring
nodejs
ts
typescript
Creating fully-automated repository with github actions

At this article I'll show the steps for configure github actions for publishing and automating releases

V Vitali Haradkou
June 18, 2022
5 min read

github
automation
ci
releases

Vitali Haradkou

About me

Posts by Vitali Haradkou

New blog design

RSLike@3. Well-known Symbols and more...

Playwright & Prometheus. Send your metrics in real-time

Zod is dead. Long live ajv-ts!

Bun: Is it fast for test automation?

k6: How to test you signalR websockets

@rslike/dbg: Debug your variables like never before!

@rslike/cmp: compare your structures like a pro

It's done! Rust-like API in your JavaScript code

Folder Uploader design

Using dotenv-guards library for safe environment variables

Using JSX for telegram bots

My experience of using zx library

Creating fully-automated repository with github actions