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There are three ways to read a binary file from the browser. The first one is to download the file through XHR with charset=x-user-defined. You get the file as a String, convert it to byte Array and you have to rewrite all the decoding and encoding functions (getUint16, getFloat32, ...). All the browsers support this. Then browsers that implemented Canvas also added CanvasPixelArray as part of Ima
The Edge of HTML5 Eric Bidelman · Jan 9, 2012 Legend: Not quite ready. Keep it on your radar. Relevant Chrome/WebKit bug. Bug has been fixed/resolved. Specification link ( Press 'n' for additional notes on some slides. Most of this presentation requires Chrome Canary 18+. ) Agenda CSS & Beyond JavaScript APIs for Apps and Games Multimedia APIs Media Capture Web RTC Web Audio API ( the undocumented
えんじに🐈にゃーん🍓🫐🍅🌽🍈🍇🦝 @uupaa (ε・◇・)з だらだら書いたよー http://t.co/fK9KaHRq 「CSSのセレクタ部分(IDやCLASS)にハイフンとか使われるの好きじゃないなー。ボクはあまり好きじゃないなー」 2012-01-22 01:37:32
There are many technical decisions to make when writing web applications. I've come back to writing modern web applications lately, and wanted to consolidate some scattered thoughts that I’ve recorded over the course of my development cycle. In particular, this post is about the set of frameworks that I found to be instrumental in developing my most recent project. I'll go over some of the most im
CasperJS is a navigation scripting & testing utility for PhantomJS and SlimerJS written in Javascript CasperJS is an open source navigation scripting & testing utility written in Javascript for the PhantomJS WebKit headless browser and SlimerJS (Gecko). It eases the process of defining a full navigation scenario and provides useful high-level functions, methods & syntactic sugar for doing common t
Introduction Writing a best practice article is quite a tricky business. To a number of you, what you are about to read will appear to be very obvious and just the sensible thing to do. However, looking around the web and getting code handed over to me from other developers for years has taught me that common sense is actually quite a rarity in live code on the web, and the “sensible and logical t
Este artículo es una compra recurrente o diferida. Al continuar, acepto la política de cancelación y autorizo a realizar cargos en mi forma de pago según los precios, la frecuencia y las fechas indicadas en esta página hasta que se prepare mi pedido o yo lo cancele, si está permitido. 🌴 Dátiles sin Carozo 1kg Naturalmente dulces, energéticos y versátiles. Una alternativa saludable para toda la fa
先日、Stylusのコードをいじってたらグローバルリークがあったので、修正してPullリクエストしました。(TJが即マージしてリリース済みだよ!) リークを見つけたのは、StylusのテストコードにGlobalオブジェクト汚染を検出するテストがあってそれをたまたま走らせただけなのですが、このテストがシンプルかつ効果的でいいなと思いました。 https://github.com/LearnBoost/stylus/blob/master/test/run.js // Testの初期化時にデフォルトのグローバルオブジェクトのキーを保存。 var globals = Object.keys(global); ... // Testが終わったらグローバルオブジェクトの差分をチェック function done() { Object.keys(global).forEach(function(nam
This document discusses strategies for improving JavaScript performance on websites. It begins by noting that JavaScript is often the number one cause of slow web pages. It then reviews the history of JavaScript loading approaches, from loading scripts in the page head in 1995 to more modern async and deferred loading. It discusses using localStorage as a cache and the Google Analytics async snipp
調べる方法を知る JavaScriptは調べるとやり方が見つかることが多い 古いものと最近のものがまざってる ごく最近〜未来のものは見つけにくい 以下の総集編的な内容 海外のJavaScript情報を見つけよう 世界のJavaScript情報を読もう 今からRSS購読すべきタグと検索結果 ブラウザの最新情報を知るために、Web開発者が読んでおくべきブログ Webの動きはとても早いので、調べ方を知る
jQuery is rapidly becoming the most widely used JavaScript library for DOM manipulation, Ajax, events and effects in the world. For developers who work …
Understanding MVC And MVP (For JavaScript And Backbone Developers) January 13, 2012 Last updated: 16th Jan, 2012. Before exploring any JavaScript frameworks that assist in structuring applications, it can be useful to gain a basic understanding of architectural design patterns. Design patterns are proven solutions to common development problems and can suggest structural paradigms to help guide us
Yoshiaki Kawazu🐸ずん @kawaz これ軽くググっても理由がわからないんだが何で危険なの?>「arguments.calleeの使用が、ECMAScript 5のStrictモードがサポートしていないことからもわかるように、危険なこと」/無くてもまぁ困らないけど理由を知り… http://t.co/I9sPoAv0 2011-11-18 21:18:59 koichik @koichik @kawaz それらは Good Parts に書いてないので、使うとダグラス様がマシンガン乱射して危険だからです。というか、caller はそもそも ECMA-262 で規定されたことがないとか、callee 使うくらいなら関数に名前つけろとか。 2011-11-18 21:38:35
A JavaScript pattern and antipattern collection that covers function patterns, jQuery patterns, jQuery plugin patterns, design patterns, general patterns, literals and constructor patterns, object creation patterns, code reuse patterns, DOM and browser patterns (upcoming). Patterns collected while developing 喜感网. General Patterns Function Declarations - creating anonymous functions and assigning t
Using CSS transitions can be quite fun. But what's not fun is when you want to transition something that needs to use display:none or visibility:hidden (or really, any non-transitionable property). For example, let's say you have a dialog. When the user clicks on the close button, you want the dialog to fade out — a simple transition from opacity:1 to opacity:0. The problem is that the element is
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