Tejas Kumar @TejasKumar_ Twitter profile | Pikagi

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Tejas Kumar

@TejasKumar_

35,084

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975

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5,492

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Best Selling Author, Fluent React ( @oreillymedia ). Host, ConTejas Code Podcast. Investor. Advisor. DevRel at @datastax . Ex- @vercel , @spotify , @xata , @g2i_co ...

Berlin, Germany

https://t.co/EY07VhxNAG

Joined November 2009

Don't wanna be here? Send us removal request.

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@TejasKumar_

Tejas Kumar

3 days

NEW on ConTejas Code @jescalan : How to Build and Run Effective Engineering Teams Summary In this episode, Jeff Escalante (Director of Engineering at @ClerkDev ) discusses his shift from web development to management, emphasizing replacing oneself as an IC, expanding vision, and…

@TejasKumar_

Tejas Kumar

6 days

NEW on ConTejas Code @biilmann : How we built @Netlify Summary In this episode, Matthias Biilmann, co-founder and CEO of Netlify, discusses the evolution of Netlify and inventing the term "Jamstack" in the serverless landscape. Throughout this conversation, Matt shares essential…

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@TejasKumar_

Tejas Kumar

8 months

Imagine getting this PR to review.

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@TejasKumar_

Tejas Kumar

5 years

Today, I married my best friend. 🔥 😍 👰🏻

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@TejasKumar_

Tejas Kumar

3 years

🔥 MAJOR CAREER ANNOUNCEMENT! I wanted to: - solve problems at massive scale, - do open source full time, - have it be related to a hobby, - work with people I enjoy and admire. Excited to start my new job at...

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@TejasKumar_

Tejas Kumar

5 years

*asks question* “Just google it” “Just read the docs” “You could have done X” yes im aware but i just wanted human connection 🥺

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Tejas Kumar

4 years

/usr is not "user", but it's "User System Resources" or usr for short

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@TejasKumar_

Tejas Kumar

2 years

Actual footage of me, a TypeScript developer confidently shipping code because it’s TypeScript.

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@TejasKumar_

Tejas Kumar

4 years

REMOTE WORKERS! 👂🏻 I’ve been hearing y’all speak about struggles with routine working remotely. Here’s what helps me: 🔋 Start on a fully charged laptop 🔌 Work unplugged 🏋🏾‍♂️ When the battery is very low, that’s my cue for self-care or to go for a walk ⚡️ Charge it ♻️ Repeat

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@TejasKumar_

Tejas Kumar

4 years

🔥 HTML has native support for autocomplete-style dropdowns attached to inputs via the <datalist> element. This input behaves like a <select> but you can type text in it and choose a specific value. Incredible. 😍 🎨 Play on @codepen :

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@TejasKumar_

Tejas Kumar

5 years

😂 Who can relate? 🖐

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@TejasKumar_

Tejas Kumar

1 year

Backend dev writing CSS

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@TejasKumar_

Tejas Kumar

4 years

I am a senior DENO developer.

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@TejasKumar_

Tejas Kumar

4 years

🔥 Did you know that you can observe CSS media queries in JavaScript and respond to them? This works with any media query, including the one to detect dark mode! 🎨 Play on @codepen :

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@TejasKumar_

Tejas Kumar

4 years

when you think you know javascript

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@TejasKumar_

Tejas Kumar

5 years

git tip: if you've been frustrated by not being able to pull or rebase because you have existing changes, say hello to my little friend: `git pull --autostash`

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Tejas Kumar

1 year

I'm starting a company.

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@TejasKumar_

Tejas Kumar

5 years

“We made a mistake hiring you” “Omg your Indian code sucks” “You should kill yourself! You don’t understand code!” All things I heard in old work experience. I cried a lot and never thought I’d make it. If I can do it, so can you 😁❤️

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@TejasKumar_

Tejas Kumar

5 years

🚀 In case you haven’t used it yet, the second argument of JSON.stringify lets you cherry-pick 🍒 keys to serialize. 😄

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@TejasKumar_

Tejas Kumar

4 years

One path to becoming a web developer: • Learn HTML • Build a basic page/document • How do we make it pretty? • Learn CSS • Make it pretty with CSS • How’s it look on mobile? • Learn responsive web • Make it universally pretty • I want it interactive • Learn JavaScript

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@TejasKumar_

Tejas Kumar

3 months

ship it

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Tejas Kumar

6 years

WHAT WHAT WHAT WHAT WHAT A TALK BY A 9 YEAR OLD JS DEVELOPER WOWOWOWOWOWOW #ConFrontJS

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@TejasKumar_

Tejas Kumar

5 years

Want to be great at code? JavaScript? React? Web Development? Heck, even more – want to be better at life? Successful? Happy?! Do not give up and consistently practice! But how do you keep going? You need to be a little bit delusional – and optimistic. (1/8)

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@TejasKumar_

Tejas Kumar

2 months

I recently spoke to an engineer who mentioned he doesn’t bill contracts hourly but per project. I asked why and he said “I don’t want to be penalized for being efficient”. I found this to be astonishing and have been thinking about this ever since.

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Tejas Kumar

4 years

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Tejas Kumar

3 years

If anyone has been “let go” from their non-IT job because of the pandemic and has a hard time finding another one, I will personally teach you to code if you want to learn and help you find a coding job at any age. The only important factor is your desire.

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@TejasKumar_

Tejas Kumar

4 years

🔥 HTML’s <q> element is a BEAST. • Locale-aware • Nests correctly Incredibly useful for when you wonder how to write “quotes ‘nested’ in quotes”, or when you want to display quoted text IN THE LOCALE OF YOUR READER. 😍🔥😍🔥😍🔥 🎨 Play on @CodePen :

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Tejas Kumar

4 years

I’ve had a terrible accident and can’t walk. I’m looking for hope. Send what you have.

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Tejas Kumar

3 years

Being a brown person in tech can be really shitty sometimes.

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@TejasKumar_

Tejas Kumar

3 years

Today was my first day at @SpotifyEng . Ask me anything!

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Tejas Kumar

4 years

@elonmusk where’s my Tesla

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@TejasKumar_

Tejas Kumar

6 months

⚡️React quiz: what happens in React if I click on the button?

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Tejas Kumar

4 years

Ah yes. Captain America the web developer.

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Tejas Kumar

7 months

Shoutout to @supabase for not doing location-based pay but paying all employees irrespective of geography.

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@TejasKumar_

Tejas Kumar

4 years

My holy trinity of web applications: Backend: @PostgreSQL API: @HasuraHQ Frontend: @reactjs (probably @vercel 's Next.js) with @tailwindcss I can build almost anything with these and I highly recommend learning them!

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@TejasKumar_

Tejas Kumar

3 years

Hire more entry-level developers. I've seen companies flourish when they have 1 (or a few) "senior" (experienced) developer(s) + a large team of entry-levels. The seniors provide direction and the eager entry-level developers run fast in those directions, learning along the way.

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@TejasKumar_

Tejas Kumar

1 year

Africa is the next tech superpower. Wakanda is coming.

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@TejasKumar_

Tejas Kumar

2 months

Today, I am a published author. Honored, privileged, and thankful for the opportunity and support from so many of you including @phry , @ythecombinator , @danieljcafonso , @SergiiKirianov and more. Pick up your copy anywhere books are sold, like on Amazon.

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@TejasKumar_

Tejas Kumar

2 years

import MyComponent from '../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../../components/MyComponent'; 🙃

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@TejasKumar_

Tejas Kumar

1 year

Anyone else feel dirty when using `useEffect`, even when it’s the right time to use it? Just me?

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@TejasKumar_

Tejas Kumar

4 years

We think working too much leads to burnout. This is scientifically incorrect. If it was true, Einstein, Jobs, @elonmusk et al would’ve burned out a long time ago. Burnout doesn’t come from working a lot. Burn out comes from working a lot wherein the work has no meaningfulness.

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@TejasKumar_

Tejas Kumar

2 years

TypeScript haters are a dying breed.

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@TejasKumar_

Tejas Kumar

3 years

Yoooooo check out my new website http://localhost:3000

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@TejasKumar_

Tejas Kumar

4 years

I hate police brutality. #EndPoliceBrutality #EndSARSImmediately

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Tejas Kumar

2 years

“E go be”-driven development

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Tejas Kumar

1 year

Today I turn 30. These are my life goals: - be patient - be kind - hold no envy or hubris - be the first to come last for others - be gentle, not forceful - be slow to anger - trust without keeping score - be honest even if it’s uncomfortable - above all, genuinely love people

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Tejas Kumar

2 years

Claire is THIRTEEN YEARS OLD and writing code! 🤯 This is just a glimpse of the mind-blowing nature of things I've seen from Nigeria's developer community at #oscafest22 . It's unbelievable! 🔥

@claire__charles

Claire 🌸

@claire__charles

2 years

The last day of #OSCAFest22 and I met with @TejasKumar_ He is such an amazing person

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Tejas Kumar

3 years

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Tejas Kumar

1 year

As a developer, don’t forget your morning coffee!

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Tejas Kumar

4 years

who needs to go to egypt when i can make my own pyramids

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Tejas Kumar

4 years

In case you missed it, adding #:~:text=SOMETHING to the end of ANY URL with highlight the word SOMETHING on the page at that URL.

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@TejasKumar_

Tejas Kumar

4 years

I love @github 's new design. Amazing work, @broccolini and team! 😍

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@TejasKumar_

Tejas Kumar

4 years

🎉 I am honored and privileged to announce that I have officially joined @g2i_co as the Head of Vetting (Engineer Evaluation). Together, we’re going to build incredible things and empower coming generations of engineers in ways that greatly excite me. 😍

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Tejas Kumar

2 years

The truth is Nigeria’s developer community is incredible and anyone who either doesn’t invest in the people or thinks otherwise is objectively wrong.

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@TejasKumar_

Tejas Kumar

5 years

Why React? A thread by the request of my friend @hackSultan . 👇🏾

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Tejas Kumar

4 years

This is the best job I've ever had because it's a company with a soul.

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@TejasKumar_

Tejas Kumar

4 years

I have COVID-19.

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@TejasKumar_

Tejas Kumar

4 years

I built an entire online streaming platform as a PWA sans video infrastructure (because I don't have datacenters or my own global CDN) with live chat + emoji reactions + photo/video upload + markdown support + i18n sync as a side project outside of my full-time job in 12 days.

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@TejasKumar_

Tejas Kumar

4 years

1 year.

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@TejasKumar_

Tejas Kumar

5 years

Today, I married my best friend. 🔥 😍 👰🏻

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Tejas Kumar

4 years

Went to the hotel reception “HELP!” “What’s wrong?” “I can’t find my room! ROOM NOT FOUND!”

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Tejas Kumar

4 years

I’m bored of coding.

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@TejasKumar_

Tejas Kumar

2 years

In JavaScript, I have an Array that renders fine when I do - 1 - 100 - 100000 rows until I try 300K, and then it randomly stops around 294773 in a map function. Is this some known issue or have I found myself in a new JavaScript hell?

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@TejasKumar_

Tejas Kumar

4 years

There are two types of JavaScript developer.

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@TejasKumar_

Tejas Kumar

4 years

Carefully consider how you choose your data structures, my friends! Access on the left snippet here is ~70% faster than the one on the right because the left one requires no iteration. The right does. I've seen the slow style (right) quite often. JSPerf:

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Tejas Kumar

4 years

Why are people afraid of doing live coding?

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@TejasKumar_

Tejas Kumar

5 years

This is the week of my wedding. I will not be tweeting that much about tech. Things might get a little cheesy. You’ve been warned. Unfollow if needed. Love you.

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@TejasKumar_

Tejas Kumar

2 years

Lagos, You’ve been good to me. From the incredible work of @Samson_Goddy , @yomaokobiah , @developerayo , @iambolajiayo , @Peace_Ojemeh , @Didicodes , the entire team and volunteers, to the positive vibes of the speakers, and the infinite love of the attendees. You will be missed. ❤️

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@TejasKumar_

Tejas Kumar

2 months

Presenting danGPT: I pulled every post *ever* from @dan_abramov2 and built a RAG-based GenAI. It’s a silly side project that may be helpful. Let me know if it is, and if you’d like it open sourced and taught in a YouTube video or similar. 👉 Try it:

@MichelleBakels

Michelle Bakels

@MichelleBakels

3 months

Sadly, I don’t have time to make this but can someone please build a Dan chatbot with all his RSC tweets for the last couple years? Then when there’s an RSC question we can just see if Dan’s already explained this. Ideally results can reference tweets to read in context.

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Tejas Kumar

4 years

❓ If you're building a simple, static website and you typically use React –– why? What is the value React gives you over OG HTML + CSS?

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Tejas Kumar

4 years

You are a frontend developer. You need to get something in the cloud. Your tool of choice (and why) is: (Reply with reason please)

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@TejasKumar_

Tejas Kumar

3 years

Would anyone be interested in hearing how me first week at @Spotify went but like ... as a rap?

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@TejasKumar_

Tejas Kumar

2 months

I am officially a #1 best selling author in the category of JavaScript on @Amazon . I can’t believe it, and am eternally grateful for this milestone and the incredible community of peers, friends, and family that got me here. Thank you all. I will not forget this.

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@TejasKumar_

Tejas Kumar

4 years

How are we feeling about React Native these days?

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@TejasKumar_

Tejas Kumar

4 years

I created a programming language.

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@TejasKumar_

Tejas Kumar

3 months

Last weekend, I worked with Postgres.

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@TejasKumar_

Tejas Kumar

5 years

DUCK DEBUGGING HAS A NEW MEANING THANKS @GOOGLE

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@TejasKumar_

Tejas Kumar

4 years

Has it occurred to you how accessible @netlify makes the web yet or

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@TejasKumar_

Tejas Kumar

4 years

😂 Soooooo apparently you can write JavaScript whose COMMENTS GET EXECUTED 🤣 😆 Play on @CodePen : I love JavaScript, y’all. So so so much. 😂

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@TejasKumar_

Tejas Kumar

1 year

Oh, you're a JavaScript developer? Create an array for me with 4294967296 elements.

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@TejasKumar_

Tejas Kumar

4 years

u ever stare at ur laptop screen like "i wanna code but i dont know where to start"

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@TejasKumar_

Tejas Kumar

10 months

I'm hiring again. Talented devrel folks from underestimated and underrepresented communities. Thankful for increased demand; let's supply 'em.

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@TejasKumar_

Tejas Kumar

7 months

My hot take is that rich text editors on digital media needs to be phased out and Markdown needs to become the standard. Not just for developers, for everyone.

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@TejasKumar_

Tejas Kumar

2 years

I’m at #OSCAFest22 ! Come say hi!

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@TejasKumar_

Tejas Kumar

2 years

Never store secure tokens in localStorage.

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@TejasKumar_

Tejas Kumar

4 years

🔥 Did you know about the HTML <details> and <summary> elements that give you expand/collapse style stateful behavior out of the box? Here’s a common UI pattern, fully accessible, with ZERO JavaScript. 🎨 Play on @codepen :

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@TejasKumar_

Tejas Kumar

3 years

How it Started How it’s Going

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@TejasKumar_

Tejas Kumar

4 years

micromanagers be like "i noticed you haven't done anything recently"

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@TejasKumar_

Tejas Kumar

5 years

🔥 Web performance tip: you can "tree-shake" @googlefonts imports by adding a `text` query param; it will only load the glyphs you need. You can also use unicode ranges. ❌ Before: 36.5 kB 😦 ✅ After: 8.3 kB 😍 Pen: More in my talk at @viewsourceconf !

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@TejasKumar_

Tejas Kumar

4 years

Coders write code. Programmers program. Engineers engine. #100DaysOfCode

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@TejasKumar_

Tejas Kumar

4 years

🔥 In case you missed it, we have a media query that supports checking if a user can hover, and then styling things accordingly. Useful if you want to provide pleasant user experiences for both touch and non-touch devices. 🎨 Play on @codepen :

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@TejasKumar_

Tejas Kumar

1 year

Writing CSS without Tailwind

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@TejasKumar_

Tejas Kumar

4 years

lol did the sun write this

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@TejasKumar_

Tejas Kumar

4 years

I love my job.

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@TejasKumar_

Tejas Kumar

2 years

[Content warning: blood] I do this every Monday around 9:30am without a choice, because if I don’t, I will be dead a few hours later. Having my life hang by this type of thread for 29 years has taught me to be thankful for every moment I have here while making the most of it.

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@TejasKumar_

Tejas Kumar

10 months

My wife is great btw

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@kentcdodds

Kent C. Dodds 🌌

10 months

My wife is great btw

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@TejasKumar_

Tejas Kumar

3 years

Almost every engineering meeting ever

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@TejasKumar_

Tejas Kumar

4 years

🔥 Did you know that you can access HTML attribute values from CSS? Here’s a single <div> card component with a title and content area. Its title is populated by CSS. 😍 🎨 Play on @codepen :

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@TejasKumar_

Tejas Kumar

3 months

This layoff trend is so savage. My heart hurts especially this week, as 3 people dear to me and my family were completely blindsided by being laid off and now have to reshuffle their entire lives. This is evil and inexcusable, first *how* people are laid off, and second, that…

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@TejasKumar_

Tejas Kumar

5 years

If anybody wants to get into: - open source - React - TypeScript and is (or feels like) a newcomer, I'd like to invite you to fix this with us: We'll personally mentor you and help you land the PR. 💞

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AvatarGroup negative margin breaks design · Issue #1076 · contiamo/operational-ui

Here's a demo of the problem. The Problem In AvatarGroup, each constituent Avatar has margin-left: -12px, which breaks their composition into any box model. The Solution Only apply the negative...

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@TejasKumar_

Tejas Kumar

5 months

Did @vercel just take over @reactdayberlin ? Is this Next.js conf now?

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@TejasKumar_

Tejas Kumar

6 months

I made this for my content creator friends: multilanguage, AI-generated subtitles. `npx gen-subs for [video]` 🔒 Works offline with on-device machine learning models. Zero dependency on OpenAI/others. 🌐 Supports a wide variety of languages. 🎨 Customizable. Try it yourself!

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@TejasKumar_

Tejas Kumar

1 year

Today's worst UX award goes to

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