Tomek Sułkowski

@sulco

Engineer ⚡️· writes about , , and improving Developer Experience

Warsaw, Poland
Joined December 2008

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  1. Pinned Tweet
    27 Sep 2019

    That feeling when you first discovered `document.designMode`

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  2. Jan 31

    tip for today: Right-click on a prop (or piece of state, hook, or context value) in React Dev Tools to copy or store it as a global variable.

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  3. Jan 29

    tip for today: `keyof` gets a union type of all properties of the given object – useful for defining params for sorting, filtering, etc.

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  4. Jan 27

    tip for today: Assign a default value when destructuring – objects and arrays!

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  5. Jan 24

    tip for today: `console.assert` prints a message in the console if the given assertion is false

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  6. Jan 22

    tip for today: `as const` assertion marks a literal expression as immutable. Nested! 🤩

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  7. Jan 20

    Still installing fonts by downloading zip files? I mean, it might be fun, I guess...

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  8. Jan 17

    Default form controls are getting a significant visual (and a18y) update in a future Chrome – so don't be surprised once things start looking differently. You can try them on now with `chrome://flags`, but here's a little side by side (OSX) to get a sense of the changes:

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  9. Jan 15

    tip for today: Add the "disabled" attribute on a `<fieldset>` element to disable inputs & buttons inside – all at once.

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  10. Jan 13
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  11. Jan 13

    tip for today is: ❤️ Did you know you can use the `<datalist>` element to provide suggestions for inputs? And not only for `[type=text]` ones: 🧮number, 📏range, ✉️email, 🟩color even, work too! demo:

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  12. Jan 10

    tip for today: Customize the Network panel to your convenience – add columns such as "Method" or "Cache-Control", or even display custom request headers!

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  13. Retweeted
    Jan 9

    Woke up at 2am last night w sheer excitement about what we’re building this year. Really feels like like a “once or twice in your career” sort of opportunity. So grateful for this job, our team and the amazing folks who use SB. I hope y’all dig what’s coming! 🤞

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  14. Jan 9

    (uh, I was wondering about a way to do this a couple of times now... and the solution is so simple🤦‍♂️) So, tip for today is: You can access the type of what's in a specific Array type by using the `number`!

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  15. Jan 7

    Basically: :ReactElement == html + custom components :ReactText == strings + numbers :ReactChild == ReactElement + ReactText :ReactNode == ReactChild + null + undefined + Array of them phew!

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  16. Jan 7

    / tip for today: There are a couple of types you can use to define children in React, and I used to always confuse them, so I've made this list.

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  17. Jan 6
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  18. Jan 6
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  19. Jan 6
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  20. Jan 6
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  21. Jan 6
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