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Overview Velocity is an animation engine with the same API as jQuery's $.animate(). It works with and without jQuery. It's incredibly fast, and it features color animation, transforms, loops, easings, SVG support, and scrolling. It is the best of jQuery and CSS transitions combined. Download Download Velocity, include it on your page, and replace all instances of jQuery's $.animate() with $.veloci
(ε・◇・)з o O ( 最近ブログ書いてないなー、そろそろ書かないとなー (ε・◇・)з o O ( JavaScriptイディオム集 が大人気かぁー、もうすぐブクマ1000個とかすごいなー (ε・◇・)з o O ( よーし。便乗して、ボクも手持ちの闇色な奴を幾つか紹介するよー window.onload をもっと使い倒したい? (ε・◇・)з o O ( window.onload には、コールバック関数を1つしか設定できないという昔からの制限があるよね? (ε・◇・)з o O ( そこを中央突破ですよ! __defineSetter__("onload", function(callback) { addEventListener("load", callback); }); (ε・◇・)з o O ( はい、これで何個でも設定できちゃうね onload = function(
JS The Right Way William Oliveira Intermediate An easy-to-read, quick reference for JS best practices, accepted coding standards, and links around the Web. Programming JavaScript Applications Eric Elliott Intermediate Take advantage of JavaScript’s power to build robust web-scale or enterprise applications that are easy to extend and maintain.
So you want to trigger an event for a DOM element, without using jQuery? This blog post gives you a quick recipe for doing so. The running example is about sending a submit event to a form. I needed to do that for a demo of user interface testing via CasperJS. And, unfortunately, the Form#submit method does not send that event on most web engines. The recipe Steps: Look up the constructor of the e
JSX - developing a statically-typed programming language for the Web Kazuho Oku presents JSX, a statically-typed programming language that compiles to JavaScript. JSX aims to improve productivity over JavaScript by enabling errors to be caught at compile-time rather than runtime. It also aims to optimize code size and execution speed compared to JavaScript through type information and compiler opt
Brian Lonsdorf has a love-hate relationship with Underscore.js. Yes, it offers a bunch of tools included in today's functional programming paradigm (like map, filter, reduce, take, drop, compose, etc.), but in Underscore the functions are sometimes verbose and unintuitive. It claims to be a functional programming language, but how true is that? Despite certain characteristics, Brian offers some s
JavaScript: The less known parts. Bitwise Operators.
'JavaScript: The less known parts' chapters: 1. Bitwise Operators 2. Storage 3. Dom Mutations Most of us probably use JavaScript every day - in my case it's building a mobile operating system in my daily job, preparing crazy and ridiculous demos for various conferences or run personal projects in my free time (mostly games). But even with years of experience (probably because the language itself i
Available free for open-source reading below or for purchase via the O'Reilly store. Pull requests and comments always welcome. Prelude Not so long ago, “data-rich web application” was an oxymoron. Today, these applications are everywhere and you need to know how to build them. Traditionally, web applications left the heavy-lifting of data to servers that pushed HTML to the browser in complete pag
JavaScript has been described as a Functional Oriented Language (this as opposed to Object Oriented Language). The reason is because functions in JavaScript do more than just separate logic into execution units, functions are first class citizens that also provide scopeL1 and the ability to create objects. Having such a heavy reliance upon functions is both a blessing and a curse: It's a blessing
A week ago was the Throne of JS conference in Toronto, perhaps the most interesting and different conference I’ve been to for a while. Quoting its website: Published Aug 1, 2012 It’s no longer good enough to build web apps around full page loads and then “progressively enhance” them to behave more dynamically. Building apps which are fast, responsive and modern require you to completely rethink yo
Written by defghi1977@xboxLIVE.この文書は全てテキストエディタで作成しています．えーと，そりゃもうゴリゴリと． 本文書はsvg要素の基本的な使い方まとめの姉妹版として作成を開始した．canvas要素の仕様は現在進行中で色々と変化しているため，一筋縄で行かないが大方のapiについて書き上がったので公開する．なお，まだ使えない機能等満載だったり，内容に間違いがあっても中々検証することができないので，その部分を了承した上でご利用下さい… 更新履歴 2012/07/18 初版 1・canvas要素の概観 canvas要素とは canvas要素はhtml5で採用されたwebブラウザ上でグラフィックを描画するための機構であり，webページの機能性・視認性が重要視される昨今では，svg要素と並び重要な役割を果たしている．もともとapple社が自社製osの機能向上策として，同
1 pixel｜サイバーエージェント公式クリエイターズブログ サイバーエージェントのクリエイターの取り組みを紹介するオフィシャルブログです。最新技術への挑戦やサービス誕生の裏話、勉強会やイベントのレポートなどCAクリエイターの情報が満載です。 はじめまして。 サイバーエージェント・ピグディビジョンでflash/javascriptによる開発をしております畑山（wonderfl・jsdo.it)です。 スマートフォン版ピグカジノ・スロットゲーム (http://casino.pigg.ameba.jp/) の開発を担当させて頂きました。 今回は使用したツール・ライブラリ・参考サイトに的を絞ってご紹介していこうと思います。 ツールtexturepackerTexturePacker – Sprite sheet maker, image packer and optimizer | Textu
A Test-Driven JS Assessment というテストを通るようなコードを書いて、JavaScriptを学ぶものが公開されていたので、それの紹介です。 JS Assessmentは最初に失敗するテストが用意されていて、そのテストコードを通るような関数などを書いていってJavaScriptの力試し、学習をするものです。 簡単にやり方を書くと、Node環境を用意した状態で git clone https://github.com/rmurphey/js-assessment.gitなどで、リポジトリをダウンロードして、 ダウンロードしたディレクトリ内で、 nodeを使って以下のようコマンドを実行してテストが実行できるローカルサーバを立ち上げます。 実行した状態で http://localhost:4444 というURLに行けば、Mochaで書かれたテストが走った結果が表示されます
As you can see above, the header inherited its font color property from its parent container though the CSS behavior of cascading. This behavior is quite similar to the concept of inheritance in OOP. We can also see that the header is a child of the container, inheriting certain properties, based on the behavior of the element. When we see our elements from this perspective, we have a better defin
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