I use Node.js, but my impression of Node.js was quite different before and after learning Node.js, so I have compiled a brief explanation of Node.js and a brief summary of what I personally got stuck in when learning it. What is Node.js? N…

I haven't touched React recently, but I read News that React Hooks has been officially released, so I read the official manual of React Hooks to see what it is all about. reactjs.org summary In React, there are two ways to create a compone…

Array.reduce() in JavaScript is a bit quirky, and I had avoided it until now, but I put it together just to understand it. Array.reduce() is, in a nutshell, a function that collects the elements of an array and returns a single output. Fir…

How to deal with the browser is not defined error when trying to run Puppeteer on a RaspberryPi. Reason When "Puppeteer" is installed by npm, Chromium is also newly installed in node_modules, and Puppeteer uses this Chromium by default. Ho…

I have been using JavaScript's async/await for some reason with a vague understanding, and when it didn't work, I would use Promise. However, recently I have been seeing async/await being used more and more often, so I started to think tha…

When I write JavaScript programs, I use TypeScript. Originally, I had written JavaScript directly, but the React component I wanted to use was written in TypeScript, so I tried writing it in TypeScript to see how it worked. I ended up not …

I was building a single page application and did not want to publish it externally, but wanted to put it on a non-local server to test delivery, so here are my notes on building it. Elements Since it was a static distribution and S3 seemed…

This is a note of what I am trying to do with the Azure Node SDK, trying to parameterize and execute on the Azure Data Factory pipeline. Pipeline execution of Data Factory is performed by the "createRun" method of the "pipelines" member of…