フォルダ名として使用できない文字列を正規表現でいい感じに変換する - Qiita
私はFirefox向けにTab Session Managerという拡張機能を作っています。これは開いているセッションを保存・復元するアドオンで，機能の一つとして保存されたセッションをファイルに書き出してバックアップを保存するオプションがあります。以前は保存場所を特定のフォルダに固定していたのですが，この度保存フォルダを文字列で指定できるオプションを実装することにしました1。 前提 ユーザは拡張機能の設定ページからこのようなフォームに入力します。 ここに入力されたフォルダ名を指定してファイルの保存処理を行うわけですが，例えばfolder?と入力されると保存処理はエラーを吐きます。?はファイル名として使用できないためです。したがって，?を-に変換するなどしてエラーを回避する必要があります。 やること 今回は上記の画像の通りフォルダ名のみを対象とする フォルダ名に含まれる特殊文字はハイフンに変
📦 Parcel v1.7.0:
Today I’m excited to release Parcel v1.7.0, a huge release with tons of new features and improvements! Check it out on Github. Since the last release, Parcel has continued to improve at a breakneck pace. Parcel v1.7.0 includes over 15 MAJOR new features, and fixes lots of bugs too. The highlights include: 🖖 Zero config Vue support out of the box! — Parcel now has full support for .vue files out o
GitHub - amellnik/Julia-to-JS: Compile Julia to Javascript via a web interface
Note: this project is no longer actively-maintained, and Julia WASM work has advanced significantly since it was put together. See for example Keno/julia-wasm. This repository is a harebrained attempt to create a web application that takes Julia code and converts it to something that can run on the web via either Tom Short's ExportWebAssembly.jl, CodeGen.jl and Emscripten. Mike Innes's Charlotte.j
Release v3.4.0 · storybookjs/storybook
2018-March-30 Welcome to Storybook 3.4 with the following key improvements: Polymer 2 support #2225 Angular and Vue storyshots #2564 Add image snapshots to addon-storyshots #2413 Multiple story hierarchies #2452 Addon-storysource: story source in addon pane #2885 Read on for more improvements, fixes, 1In addition, there are hundreds of dependency upgrades in the 3.4 release, so to see the details,
Announcing the Second Edition of "Refactoring"
For the past two years, I've been working on a second edition of my book “Refactoring”. Here I have details about the new edition and some memos describing my thoughts in the last months of this project. The book is now available and you can buy it from informit (the web presence of the publisher), Amazon, or your favorite book seller. Purchasing the book gives you access to the canonical web edit
GitHub - R-js/libRmath.js: This R statistical nmath module re-created in typescript/javascript and handwritten webassembly.
This R statistical nmath re-created in typescript/javascript and handwritten webassembly. Distributions: beta, binomial, binomial-negative, cauchy, ch-2, exponential, fisher, gamma, geometric, hypergeometric (web assembly), logistic, log normal, multinomial, normal/gaussian, poisson distribution, singnrank (web assembly), student-t, tukey, uniform, weibull, wilcoxon. Special functions: bessel, bet
Tomorrow’s ES Modules Today!
Seven months ago I released an experimental module loader that enabled ES modules in Node. With over a million downloads, thousands of commits, and the tremendous help of early adopters and the JavaScript community, it’s ready for its stable release! 🎉🎉🎉 Meet esm – A fast, production ready, zero-dependency ES module loader for Node 6+ that delivers an awesome developer experience to boot! As wi
GitHub - asfktz/Awaity.js: A functional, lightweight alternative to bluebird.js, built with async / await in mind.
Awaity.js is a subset of bluebird.js that focuses only on what's relevant for async / await while using native promises instead, the result is a functional utility library with a minimal footprint. much like lodash, but for promises. That greatly reduces the library footprint, while bluebird's is 17KB min/gzip, Awaity.js takes only 2KB for the whole lib, and since it built to support tree shaking
GitHub - d-band/better-xlsx: A better xlsx library.
const fs = require('fs'); const xlsx = require('better-xlsx'); const file = new xlsx.File(); const sheet = file.addSheet('Sheet1'); const row = sheet.addRow(); const cell = row.addCell(); cell.value = 'I am a cell!'; cell.hMerge = 2; cell.vMerge = 1; const style = new xlsx.Style(); style.fill.patternType = 'solid'; style.fill.fgColor = '00FF0000'; style.fill.bgColor = 'FF000000'; style.align.h = '
JavaScript in 14 minutes
Since you've already learned Web design in 4 minutes, it's time to dive into the Web's main programming language: JavaScript. It looks like you're on a mobile device tablet! 😱 But fear not! 😊 While this tutorial is not optimized for this platform, I still made it readable enough for you to enjoy. You should however revisit it on a desktop later if you can, to experience all the features! Anyway,
Getting Started With The Web MIDI API — Smashing Magazine
Is it possible to use digital musical instruments as browser inputs? With the Web MIDI API, the answer is yes! The best part is, it’s fairly quick and easy to implement and even create a really fun project. In this article, Peter Anglea will cover the basics of MIDI and the Web MIDI API to see how simple it can be to create a web app that responds to musical input using JavaScript. As the web cont
他人に読んでもらうJavaScriptコードを書くために
とりあえず動けばいい、の精神でコードを書ける個人開発とは違い、仕事やオープンソースプロジェクトにおけるコーディングでは、「他人が読むコード」を意識して書く必要があります。 他人が読むのですから、もちろんわかりやすいコードでなくてはなりません。でも、「わかりやすい」とは何でしょう。どうしたら実現できるのでしょう。 この記事では、他人が読む可能性があるコードを書くときに気をつけていた方がいい事項について、いくつか紹介します。 まえがき 私が社会人になって数ヶ月が経ちました。会社では自分でコードを書くのはもちろん、他人の書いたコードをいじるという、今まであまり経験していない作業をすることもあります。 そしてその中で使われている言語にはJavaScriptも含まれます。JavaScriptは平易な言語であり、クライアントサイドでもサーバサイドでも採用できるので、様々な場面で使用されています。 さす
Text Buffer Reimplementation
March 23, 2018 by Peng Lyu, @njukidreborn The Visual Studio Code 1.21 release includes a brand new text buffer implementation which is much more performant, both in terms of speed and memory usage. In this blog post, I'd like to tell the story of how we selected and designed the data structures and algorithms that led to those improvements. Performance discussions about JavaScript programs usually
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map, reduce もいいけど transduce もね - Qiita
GitHub - jaywcjlove/hotkeys-js: ➷ A robust Javascript library for capturing keyboard input. It has no dependencies.
Working with the new CSS Typed Object Model | CSS and UI | Chrome for Developers
2018年のフロントエンドエンジニアを取り巻く課題とチャレンジ
power-assert/CHANGELOG.md at v1.5.0 · power-assert-js/power-assert
GitHub - cmseaton42/task-easy: A simple, customizable, and lightweight priority queue for promises.
GitHub - mafintosh/memory-pager: Access memory using small fixed sized buffers