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The State of JavaScript Frameworks, 2017 Laurie Voss, co-founder and COO, npm, Inc. January 3rd, 2018 Part 3: Back-End Frameworks The story on the back end is simple: Express is the overwhelmingly dominant solution for back end services written in JavaScript. The next four biggest frameworks are so small relative to Express that it’s hard to even see them. The other clear pattern here is that Expr
Deleted articles cannot be recovered. Draft of this article would be also deleted. Are you sure you want to delete this article? Sure, I am happy to help! もちろん、喜んで協力します! Do you think Haskell is underrated as an industrial, professional programming language by IT project managers? Yes, definitely. There are a few aspects of Haskell which makes it look like a bad choice: はい、全く持ってその通りです。いくつかの点でHaskel
(Updated on: 21.11.2021) This guide is intended to catch you up with the most important reasoning, terms, tools, and approaches to JavaScript testing for the year 2022. It combines information from the best articles recently released (they are referenced at the bottom) and adds from my own experience. It’s a little long but whoever reads and understands this guide, can safely assume they know the
This post was written by vjeux and edited by jlongster. We officially announced prettier over two months ago as a way to solve the problem of wasting time formatting your code. It started as an experiment but it clearly resonated with a lot of people, amassing ~7000 GitHub stars and over 100,000 monthly npm downloads in just two months. In case you don't know, prettier is a JavaScript formatter th
Date.parse(‘1999-07-07’)を実行すると、値は 931305600000 と UTC のタイムゾーンで解釈されるのに対して、Date.parse(‘1999/07/07’)を実行すると、値は 931273200000 と JST のタイムゾーンで解釈される。あ、ローカルの時間が JST の場合。現時点(Firefox 24、Chrome 31) Date.parseでは引数に与えられた文字列をパースして、ミリ秒の値を値を返してくれます。タイムゾーンの指定がない場合はローカルのタイムゾーンとして解釈される。ECMA-262では、以下のように説明されています(太字は私がつけた)。 15.9.4.2 Date.parse (string) The parse function applies the ToString operator to its argument and
I won’t be making any recommendations related to frameworks or any type of prediction for the year, my crystal ball is in the shop, I will just show you the current search trends that give us a hint on where users or developers are headed. First of all I want to mention Node.js, this technology is a huge part of the JavaScript environment and its rise in the ranks bodes well for JavaScript develop
arco 0.1.3 A React+Redux framework with standards, conventions, and far less boilerplate Documentation Installation $ npm i arco --save Summary arco is a framework designed to streamline a lot of the architectural configuration of a React application by providing several web-standard packages built-in, as well as an API that is built to keep boilerplate minimal. The following packages are all incl
(2016/12/15追記) この記事はDeprecatedです。 Reduxの概念をRxJSとTypeScriptで理解する ver.2 が最新版になります。 GitHubリポジトリはこちら → ovrmrw/understanding-redux-with-rxjs git cloneしたらnpm installしてnum run tsですぐに動かせます。 (注: Reactの話は一切出てきません) Reduxとは Redux公式 アプリケーション全体で状態(state)を一つのJSONツリーの構造で持ち、それをActionがキックされる度に全体更新して配信するという概念。 僕は最初FluxとかReduxとかよくわからなかったけど、色々参考にしながら自分で書いてみたらようやく理解できました。 Middlewareという概念はよくわからなかったし今でもよくわかりません。 ロガーとか便利な
NW.js (previously known as node-webkit) lets you call all Node.js modules directly from DOM and enables a new way of writing applications with all Web technologies. New way of writing native applications using web technologies: HTML5, CSS3, and WebGL Full support for the features in browser Complete support for Node.js APIs and all third party modules Call Node.js modules directly from the DOM and
今日こんなスライドを見かけた。 djcordhose.github.io これはtypescriptとflowtypeの違いがよく分かるすごく良いスライド。 このスライドの5ページ目に以下の1文がある。 FLOW SOUNDNESS, NO RUNTIME EXCEPTIONS AS GOAL スライドに刺激を受けたのと、最近flowtypeを触っていたのもあって、これが何を指しているか書きたくなった。 実行環境 flow: 0.26.0 typescript: 1.18.10 Flowtypeのきほん 以下のjavasciptのプログラムをflowにかけてみる。 function foo(x) { return x * 10; } foo('Hello, world!'); $ flow flow.js:5 5: foo('Hello, world!'); ^^^^^^^^^^^^^^^
8 d'b o 8 o 8 8 8 8 8 .oPYo. o8P o8P .oPYo. .oPYo. .oPYo8 o8 .oPYo. 8 8oooo8 8 8 ooooo 8 8 .oooo8 8 8 8 8 8 8 8. 8 8 8 8 8 8 8 8 8 8 8 8 `Yooo' 8 8 8YooP' `YooP8 `YooP' 88 8 `YooP' ..:.....::..::::..:::::::8 ....::.....::.....:..::..:.....: :::::::::::::::::::::::::8 :::::::::::::::::::::::::::::::: :::::::::::::::::::::::::..:::::::::::::::::::::::::::::::: Welcome to left-pad.io! ## History On M
V8 implements a large subset of the JavaScript language’s built-in objects and functions in JavaScript itself. For example, you can see our promises implementation is written in JavaScript. Such built-ins are called self-hosted. These implementations are included in our startup snapshot so that new contexts can be quickly created without needing to setup and initialize the self-hosted built-ins at
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