Flash Cards: Math
Harken
Coursera
Pitch Deck Hunt
Jot
Duolingo
Productivity Power Tools
Decks is a study application designed to keep all your stuff in one place, instead of having an app for flashcards, another for notes, and one to watch tutorials, create a deck and keep everything organized there.

JSFiddle
CodeSandbox
GitHub
replit
VS Code
Pastebin.com
JS Bin
A front end web development playground.
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Based on our record, CodePen seems to be a lot more popular than Decks. While we know about 513 links to CodePen, we've tracked only 1 mention of Decks.
Website, pricing, platforms and company facts side by side.
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| Website | decksapp.com | codepen.io |
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Codepen is a social network for developers to show off their work, ask and answer questions, and exchange ideas. It's like a Reddit for coding and design, with a large community of talented web developers.
Codepen is a social development environment that allows developers to showcase their work and experiment with HTML, CSS, and JavaScript in a collaborative space. Codepen’s focus on visual and interactive development...
Codepen is a social development environment for front-end designers and developers. Build and deploy a website, show off your work, build test cases to learn.
Recommendations tracked on public social media and blogs since March 2021.

I built decks because I found learning to be a fragmented experience. I do a lot of my learning through watching tutorials, taking notes, reading blogs and books, and what I found was that I would have my stuff all over the place. My... Source: almost 5 years ago
> I vividly remember IE and many hacks to have css elements properly working in it… The common advice now is to only use CSS that is supported in the last two major versions of each major browser. You can check any css property's support... - Source: Hacker News / about 1 month ago
Thank you, heartfelt... For sharing an artwork, a miracle! Just in case, have you considered publishing the work at platforms as CodePen, where genius Artists/People express their art, too, as you?: // https://codepen.io/. - Source: Hacker News / 2 months ago
Embed on DEV: If you prefer CodePen embed, create a Pen with that HTML and add to the post as: {% codepen https://codepen.io//pen/ %}. - Source: dev.to / 11 months ago
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Flashcard app using smart repetition to improve your memory
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Build skills with courses, certificates, and degrees online from world-class universities and companies
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Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.
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