pyrsmk’s gists

pyrsmk / limiter.ts

Created July 8, 2022 09:41

A simple rate limiter that waits for N milliseconds before running the next callback.

	/*
	How to use:

	import limiter from './limiter'
	const limit = limiter(<wait_time_in_ms>)
	limit(() => console.log('foo'))
	limit(async () => console.log('bar'))
	*/
	export default (interval : number) => {
	if (interval <= 0) {

pyrsmk / busy.ts

Created July 1, 2022 14:06

A simple function that marks a callback as busy to avoid calling it multiple times before it has finished its task.

	const busyCallbacks = new Set()

	export async function busy(callback : () => any) : Promise<any> {
	if (busyCallbacks.has(callback)) {
	return
	}
	busyCallbacks.add(callback)
	const value = await callback()
	busyCallbacks.delete(callback)
	return value

pyrsmk / recursive-readdir-sync.ts

Last active July 8, 2022 08:43

Read a directory recursively

	import fs from 'fs'
	import path from 'path'

	const recursiveReaddirSync = (currentPath : string) => {
	let results : Array<string> = []

	fs.readdirSync(currentPath).forEach(filename => {
	const filePath = path.resolve(currentPath, filename)
	const stat = fs.statSync(filePath)
	if (stat.isDirectory()) {

pyrsmk / xml2obj.js

Created January 19, 2022 17:38

Convert XML files to JS objects.

	// It converts simple XML structures to JS objects. The default value of a node is an
	// empty string, as it should be (contrary to several libraries I tested).

	const { DOMParser } = require('@xmldom/xmldom')

	const loadChildNodesRecursive = node => {
	const nodes = {}
	Array.from(node.childNodes)
	.filter(element => element.nodeType === element.ELEMENT_NODE)
	.forEach(element => {

pyrsmk / async_queue.ts

Last active July 8, 2022 08:53

A queue that handles async functions in order with a wait time between each callback.

	/*
	Usage:
	import async_queue from 'async_queue'
	const queue = async_queue(<wait_time_in_ms>)
	queue(async () => await someSlowAction1())
	queue(async () => await someSlowAction2())
	*/
	export default (waitTime : number) => {
	const queue : Array<() => Promise<void>> = []
	return (callback : () => Promise<void>) => {

pyrsmk / svelte-lint.js

Last active January 4, 2022 14:08

	// Currently, the ESLint plugin used by Svelte is buggy and choke on files with Sass.
	// This little implementation takes care of removing styling from Svelte components as
	// as well as handle any type of files other than Svelte, with complete respect of rules
	// from the base ESLint plugin (that is, `.eslintrc.cjs` rules are used). It has been
	// thought to be simple to use and integrate.
	//
	// https://github.com/sveltejs/eslint-plugin-svelte3/issues/10
	//
	// Usage example:
	//

pyrsmk / event_testing.html

Last active March 15, 2022 10:33

Because sometimes we don't understand what's going on with DOM events (even more on mobiles), here's an HTML page to test and understand things 🦄

	<!doctype html>
	<html>
	<head>
	<title>Event testing.</title>
	<meta charset="utf-8">
	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
	<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/normalize/8.0.1/normalize.min.css" integrity="sha512-NhSC1YmyruXifcj/KFRWoC561YpHpc5Jtzgvbuzx5VozKpWvQ+4nXhPdFgmx8xqexRcpAglTj9sIBWINXa8x5w==" crossorigin="anonymous" />
	<script src="https://code.jquery.com/jquery-3.6.0.slim.min.js" integrity="sha256-u7e5khyithlIdTpu22PHhENmPcRdFiHRjhAuHcs05RI=" crossorigin="anonymous"></script>
	<style>
	* {

pyrsmk / Makefile

Created November 26, 2020 16:30

Current directory example in Makefile

	current_dir := $(dir $(abspath $(firstword $(MAKEFILE_LIST))))

	.PHONY=install
	install:
	ln -sf $(current_dir)config ~/.test/config

pyrsmk / fancy_loader.rb

Created July 2, 2020 08:36

A fancy dots loader

	def fancy_loader(current, total)
	glyph = "⠹⠼⠶⠧⠏⠛"[(Time.now.to_f * 10).to_i % 6]
	print "\r#{glyph} #{current}/#{total}"
	end

pyrsmk / service.rb

Last active July 2, 2020 20:01

Example of a pipe implementation in a service, from the functional programming world 🤖

	class SomeService
	def call(some_value, bypass_some_method4 = false)
	pipe(
	some_value,
	:some_method1,
	:some_method2,
	-> (value) { value * 2 },
	bypass_some_method4 ? :noop : :some_method4,
	:some_method5
	)

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