The Moddable SDK is a combination of development tools and runtime software to create applications for microcontrollers. Microcontrollers are highly constrained devices compared to modern computers and mobile devices. A typical microcontroller used with the Moddable SDK has about 45 KB of free memory, 1 MB of Flash ROM, and runs at 80 MHz. The Moddable SDK uses many different techniques, both at b
(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
child_processモジュールの関数群もutil.promisify()を使ってPromise化できる。しかしexecFile()などは元々のコールバックに3つ引数が渡されることから少し使い方が違ってくる。ここまでは皆が通る道だろう。実はそれだけでなくリジェクトされた時も少し違うことが公式ドキュメントの該当する項の最後に記載されていた。 In case of an error, a rejected promise is returned, with the same error object given in the callback, but with an additional two properties stdout and stderr ちゃんとcatch()されているなら、エラーが起きた場合にその中で標準出力と標準エラーにアクセスできるわけだ。こうなっていることでプロミ
"In The Loop" presented by Jake Archibald at JSConf.Asia 2018 Have you ever had a bug where things were happening in the wrong order, or particular style changes were being ignored? Ever fixed that bug by wrapping a section of code in a setTimeout? Ever found that fix to be unreliable, and played around with the timeout number until it kinda almost always worked? This talk looks at the browser's
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