Axel Rauschmayer rauschma

Stateless RegExp methods

The rules for the flags /g and /y are complicated.
Regular expression operations keep state in RegExp objects, via property .lastIndex. That leads to several pitfalls if a RegExp object is used multiple times. It also makes it impossible to freeze instances of RegExp.
String.prototype.replace() accepts a callback where accessing named captures is inconvenient (via an object that is passed as the last argument).

Currently, the economy and commercialized work dominates our society.
Many societies are not based on “commercialized work” and don’t have a word for it.
Adam Smith: work enables us to create wealth. We are interested in the latter (not in work itself).
During the 18th century, our values changed significantly: from valuing moderation (a traditional christian value) to valuing wealth.
- The goal became to produce as much as possible – more than we need to fulfill out immediate needs.
Work becomes something meaningful: To assert ourselves in the world, we have to work.

I find it easiest to make sense of this as follows:

It’s an implicit parameter of functions (other than arrow functions).
It’s always provided when we invoke such functions – how depends on how we invoke them.

Demo:

import assert from 'node:assert/strict';

//========== this is an implicit parameter of getThis() ==========

This bookmarklet shows a profile or a post on another Mastodon server in your server’s web app.

Change the value of HOST to the domain of your Mastodon server.
Create a bookmark and paste the lines in show-in-mastodon-web-app.js into its address (browsers are OK with pasting multiple lines).

	const primaryColumn = document.querySelector('div[data-testid="primaryColumn"]');
	document.body.innerHTML = '';
	document.body.append(primaryColumn);

	// Per-tweet controls
	for (const ele of document.querySelectorAll('div[role="group"]')) {
	ele.remove();
	}

	// Reply widget

-// Batch-delete videos from YouTube’s “Watch later” playlist
-// Paste the following code into a browser console while the playlist is open
-// Code based on: https://gist.github.com/astamicu/eb351ce10451f1a51b71a1287d36880f?permalink_comment_id=4087416#gistcomment-4087416
-//
-// (Suggestions for improvement welcome. My approach for waiting for the .click() to finish, feels hacky.)
-const pause = (ms) => new Promise((resolve) => setTimeout(resolve, ms));
-async function remove() {
-  for (let i=0; i < 100; i++) {
-    document.querySelector('#primary button[aria-label="Action menu"]').click();

	#!/usr/bin/env node

	// Use curl to download a URL to a file whose name is URL-decoded
	// Related: https://github.com/curl/curl/issues/2573

	import {execSync} from 'node:child_process';
	// Documentation for node:child_process – https://exploringjs.com/nodejs-shell-scripting/ch_nodejs-child-process.html

	export const WEB_PATH_SEP = '/';
	export function getWebBasename(webPath) {

	import assert from 'node:assert/strict';

	// Extended RegExp mode (flag /x) [1] via a template tag
	//
	// Quote: “While the x-mode flag can be used in a RegularExpressionLiteral,
	// it does not permit the use of LineTerminator in RegularExpressonLiteral.
	// For multi-line regular expressions you would need to use the RegExp
	// constructor.”
	//
	// The plan is to include this functionality in re-template-tag [2]. Then

	// The actual API is documented at the end of this file

	/**
	* @see https://en.wikipedia.org/wiki/ANSI_escape_code#SGR_(Select_Graphic_Rendition)_parameters
	*/
	const ansiConstants = {

	//----- Attributes -----

	Normal: 0,