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Written by Simon Bailey In this post I will show you how you can use an amazing set of tools and libraries to help speed up development of AngularJS applications. We will use Yeoman to generate the project/files for us and Grunt to automate tasks such as running the server/tests. Bower is a package manager for the web and please be aware I don’t go so much into Bower as the other tools take up a l
Alex Russell on browsers, standards, and the process of progress. One of the things I've poured myself into this year -- with a merry band of contributors including Domenic Denicola, Anne van Kesteren, Jake Archibald, Mark Miller, Erik Arvidsson, and many others -- has been a design for Promises that DOM and JS can both adopt. There's a (very) long history of Promises, Deferreds, and various other
JavaScript libraries such as jQuery serve a great purpose in enabling and normalizing cross-browser behaviors of the DOM in such a way that it’s possible to use the same interface to interact with many different browsers. But they do so at a price. And that price, in the case of some developers, is having no idea what the heck the library is actually doing when we use it. Heck, it works! Right? We
Functional Programming Patterns in Four Popular Javascript Libraries I generally find discussions of design patterns a bit dry, but in testing new Javascript libraries, I’ve stumbled across some interesting tactics. Object oriented design patterns are typical not a perfect fit to Javascript, given it’s untyped nature. The language lends itself more to powerful functional programming techniques. I
If you use either source maps or sourceURL (both covered in this primer on source maps), then you may see a warning in Chrome console like "/*@ sourceMappingURL=" source mapping URL declaration is deprecated, "/*# sourceMappingURL=" declaration should be used instead. Here's what that's about: Impetus //@ sourceMappingURL was found to have a conflict with IE whenever it was found in the page after
変数の使用の単純化 withの使用の禁止 strictモードではwith文が使えなくなります。代替の手段としては、オブジェクトに短い名前の変数を割り当てて、その変数を用いて対応するプロパティにアクセスすることができます。 eval内で宣言された変数のスコープ 非strictモードでは、eval("var x ;")の様に、eval関数内で定義された変数のスコープは、evalが含まれるスコープ(関数、またはグローバルスコープ)まで広がりますが、strictモードでは、eval内で定義された変数を周囲のスコープに広げません。 単純名の削除の禁止 strict モードでは delete name を構文エラーにします evalおよびargumentsの単純化 strictモードでは「eval」「arguments」という名前がキーワードとして扱われるため、これらのキーワードに対して言語構文でのバ
Alon Zakai (Mozilla) @kripken QCon Other Languages? Why? ;) JavaScript is great Runs in all browsers Familiar syntax Dynamic typing Other languages are great too Mixing Languages: examples Spreadsheets: C/C++ and VBA, etc Web browsers: C/C++ and JavaScript Game engines: C/C++ and Lua, etc. Libraries for scripting languages: Python and C/C++ modules like NumPy, etc. Mixing Languages When useful, gi
Mid May, I gave a talk at NodePDX on functional reactive programming in JavaScript. I discussed the general ideas behind the programming paradigm and various implementations that exist. The video is finally available online and the slides are also available. Here’s some links to the various different approaches to functional reactive programming: Flapjax Reactive Extensions (RxJS) Shafty Javelin B
Node.js includes a command-line debugging utility. The Node.js debugger client is not a full-featured debugger, but simple stepping and inspection are possible. The debugger supports two modes of operation: interactive mode and non-interactive probe mode. Interactive mode# $ node inspect [--port=<port>] [<node-option> ...] [<script> [<script-args>] | <host>:<port> | -p <pid>] To use it, start Node
Bacon.jsという、Functional Reactive Programming のFrameworkを使ったJava Scriptライブラリを使って業務アプリを書いてみました。関数型の考え方をふんだんに使いつつも、GUIなどのユーザ入力を伴うような処理に柔軟に対応している、マイナーながら優れたライブラリです。 実際にBacon.jsを使って実装してみて、何が良かったかなってところを、 ちょっと素人なりに色々と考えてみました。 1. 出てくるワードが直感的であるBaconでは、EventStream, Propertyなどといった独自のワードがいくつか出てきます。 ライブラリを読んで色々と使うのは大変だなあと個人的にはよく思いますが、Baconに関しては、新しい概念を取り入れているのにも関わらず、非常に直感的且つイメージがつきやすいワードを選択しているので、頭の中に構造を描きやすい仕
A programming quandry (related to some thoughts I’ve had on locality): The prevailing wisdom says that you should keep your functions small and concise, refactoring and extracting functions as necessary. But this hurts the locality of expectations that I have been thinking about. Consider: function updateUserStatus(user) { if (user.status == "active") { $("<li />").appendTo($("#userlist") .text(us
Sails.js is an up and coming Node.js framework, with a focus on freedom and smart defaults. In this article we'll take a look at some of the data features Sails provides out-of-the-box, for easily making complex apps. Why Sails Is Different Than Other Frameworks The reason to choose Sails is best put by the Sails creator, Mike McNeil, "Sails was created out of necessity". Many frameworks you see a
Here are some common issues that cause you to see this page: Your domain is pointed to the server, but there is no site with that domain name on the server. You are accessing the site via HTTPS, but the site does not have an SSL certificate installed. Your domain has an AAAA record, but the site only works with IPv4 on the server.
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