Paweł Kowalski

Performance, JavaScript, Serverless, and Testing enthusiast.

Earth, Milky Way Joined on Dec 25, 2017 https://pavelloz.com

Work

Senior Performance Engineer at platformOS

Pinned

Paweł Kowalski for platformOS

Jun 9 '20

Speeding Up Tesla.com - Part 2: Main CSS Splitting

#webperf #css #javascript #webpack

6 min read

Paweł Kowalski for platformOS

Oct 14 '21

Background images in TailwindCSS - the clean and easy way

#tailwindcss #css #beginners

1 min read

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Paweł Kowalski for platformOS

Sep 28 '21

We Are Switching From TestCafe to CodeceptJS – Here’s Why

#javascript #testing

2 min read

Paweł Kowalski for platformOS

Apr 7 '21

How We sped Up Our Webpack (TailwindCSS) 7 times!

#performance #webpack #javascript

2 min read

Paweł Kowalski for platformOS

Mar 22 '21

How We Sped Up Our Webpack (TailwindCSS) Build By 74%

#performance #webpack #tailwindcss

3 min read

Paweł Kowalski for platformOS

Dec 29 '20

How to catch Front-end performance regressions?

#webperf #beginners

2 min read

Paweł Kowalski for platformOS

Dec 20 '20

How platformOS uses mixpanel while keeping users privacy?

#beginners #analytics #privacy #performance

5 min read

Paweł Kowalski for platformOS

Dec 4 '20

platformOS Documentation Site Webpack Setup

#webperf #webpack #platformos

6 min read

Paweł Kowalski for platformOS

Nov 26 '20

How to Test Slack Notifications

#testing

4 min read

Paweł Kowalski for platformOS

Nov 17 '20

Using WebP in Your Existing Webpage

#webperf #design

4 min read

Paweł Kowalski for platformOS

Nov 12 '20

Should You Always Care about Your Website Size?

#webperf #webdev #beginners

4 min read

Paweł Kowalski for platformOS

Nov 11 '20

Image Maps with SVG — Back to the Future

#html #css

2 min read

Paweł Kowalski for platformOS

Oct 15 '20

Our documentation site is using Webpack 5 already

#webpack #javascript

2 min read

Paweł Kowalski for platformOS

Aug 3 '20

Scrolling to the Top in CSS

#css #webdev

2 min read

Paweł Kowalski for platformOS

Jul 16 '20

We Couldn't Go Faster Using Quicklinks (or instant.page)

#webdev #webperf #javascript

5 min read

Paweł Kowalski for platformOS

Jul 3 '20

2 Console Commands You Might Forget About

#javascript #beginners

2 min read

Paweł Kowalski for platformOS

Jun 29 '20

3 Performance Tips for Your Next Project

#webperf #javascript #css

4 min read

Paweł Kowalski for platformOS

Jun 25 '20

Hide webpage elements, natively

#css #a11y

2 min read

Paweł Kowalski for platformOS

Jun 24 '20

3 Tips on Preserving Website Speed

#webperf #webpack #javascript #css

6 min read

Paweł Kowalski

Jun 23 '20

How to get rid off hero banners on DEV.to

#meta #privacy

3 min read

Paweł Kowalski for platformOS

Jun 22 '20

The Ten Commandments of Web Performance

#webperf #javascript #css #webpack

1 min read

Paweł Kowalski for platformOS

Jun 15 '20

Developing GraphQL Queries Using GraphiQL

#graphql #platformos #graphiql #beginners

5 min read

Paweł Kowalski for platformOS

Jun 1 '20

Speeding Up Tesla.com - Part 1: Images and JS Minification

#webperf #javascript #css

5 min read

Paweł Kowalski for platformOS

Apr 25 '20

Monitoring Website Performance Using Lighthouse-CI

#webperf #docker #javascript

3 min read

Paweł Kowalski for platformOS

Apr 24 '20

Optimizing Images For The Web

#beginners #node

8 min read

Paweł Kowalski for platformOS

Apr 23 '20

Implementing Social Media Cards for Your Website

#html #beginners #seo

4 min read

Paweł Kowalski for platformOS

Apr 22 '20

Simple node debug logging

#node #beginners #javascript

2 min read

Paweł Kowalski for platformOS

Mar 30 '20

Embedding Youtube Videos in a Performant Way

#beginners #webperf #javascript

2 min read

Paweł Kowalski for platformOS

Mar 27 '20

Recording Your Terminal to SVG

#beginners #shell #opensource

4 min read

Paweł Kowalski for platformOS

Mar 26 '20

Optimizing SVG Exported from Figma

#figma #webperf #webdev #beginners

8 min read

Paweł Kowalski for platformOS

Mar 25 '20

Optimizing Font Files for the Modern Web

#beginners #webperf

5 min read

Paweł Kowalski

Dec 22 '19

Filtering collection properties the easy way

#javascript #beginners

1 min read

Paweł Kowalski

Dec 1 '19

Refactor a function to be more functional

#javascript #functional #beginners

3 min read