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Pop-up JavaScript challenges in your browser Try thesedemos: Try a single challenge Try a series of challenges Challenger is a drop-in JavaScript library that adds interactive programming challenges to any page. Challenges are flexible and expressive, and are super simple to write. A challenge has requirements based on code structure and program output, and gives users a code editor to experiment
先日参加した、isomorphic tokyo meetupで紹介されていたfetchrが良さそうだったので、使ってみた。 fetchrが解決する課題 React+Fluxでサーバサイドレンダリング時に、superagentやaxios、isomorphic-fetchなどのIsomorphicなHTTPクライアントを使ってデータをフェッチするが、そのまま使うと下記のような課題にぶつかる。 ブラウザから直接BEのAPIにアクセスできない(またはさせたくない、外部のAPIでキー・シークレットをブラウザ側で持ちたくない)場合、そのAPIとProxyするエントリポイントを作る必要がある。 フェッチ部分のロジックが共有されるので、ブラウザではWeb API経由でフェッチして、サーバサイドレンダリング時は直接DBにクエリを叩きたい、みたいなのを自分で実装すると面倒。 fetchrはBEや外部のAPI
Load the library, request feature test results for the current browser, use those results to determine what code to deliver for your application! If all the JavaScript features/syntax your code uses are supported natively by the browser, why would you load up the ugly transpiled code? Why would you load dozens of kb of polyfills/shims if all (or most of) those APIs are already built-in? Just use t
Last monday I published an open-source library to easily take control of drag & drop in the front-end, dragula, and it has amassed over 2000 stars on GitHub in under a week. Previously I had published a date picker component, Rome, that’s somewhat popular among the nerds. In this article we’ll discuss how you can build and isolate components that have a simple API. Dragula had a much faster growth
One of the common concerns I faced in web/frontend development is libraries like “Angularjs, Bootstrap, JQuery… etc..” loading time, and do how they affect website performance when you need to load several libraries to your website/page.. especially with low internet speed connections. There are many solutions for compressing files and caching from both backend and frontend sides. However, I found
Functional reactive programming is a powerful programming paradigm for expressing values that change over time. But existing libraries for JavaScript are huge, complex, have a high learning curve and aren't functional enough. Flyd is simple and expressive. It has a minimal but powerful core on top of which new abstractions can be built modularly. Main features Simple but powerful. Less is more! Fl
とあるWebエンジニアのそれなりのブログ、JavaScript/Node.js/Python/PHP/ゲーム作成 など 「クラスタリング法」という手法で迷路生成をする npm モジュールを作成しました。 → generate-maze-by-clustering 使用例: $npm install -g generate-maze-by-clustering $generate-maze-by-clustering 20 10 ######################################### # # # # # # # # # # # ##### ### # # # # ### ##### # ### ### ### # # # # # # # # # # # # # # # ##### ### # ### # # ##### ### # # # # # # # # #
<!--HTML--> <div class="clusterize"> <table> <thead> <tr> <th>Headers</th> </tr> </thead> </table> <div id="scrollArea" class="clusterize-scroll"> <table> <tbody id="contentArea" class="clusterize-content"> <tr class="clusterize-no-data"> <td>Loading data…</td> </tr> </tbody> </table> </div> </div> <!--HTML--> <div class="clusterize"> <table> <thead> <tr> <th>Headers</th> </tr> </thead> </table> <
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