| import * as http from 'node:http'; | |
| import { Readable } from 'node:stream'; | |
| import { setInterval } from 'node:timers/promises'; | |
| async function* chunksWhile(ms) { | |
| let count = 0; | |
| for await (const startTime of setInterval(1000, Date.now())) { | |
| yield `<div>Looking for your cat... (n=${++count})</div>`; | |
| if (Date.now() - startTime > ms) { | |
| return; |
There are too many LRU(Least Recently Used) implementations in JS.
I recommend to use [flru] which is the smallest one and fast enough. Unless you need more rich functionality.
However, it's performance is vary depend on the host environment. For example, flru loses on Bun.
If you need micro-optimization on it, measure it yourself in your environment.
execute which compatible with exsting GraphQL resolvers
unpack(docs).pipe(executeStream)
| #!/bin/bash | |
| function healthcheck() { | |
| local domain=$1 | |
| local total_tests=$2 | |
| local total_failed_count=0 | |
| local ip_list=() | |
| for ((i = 0; i < total_tests; i++)); do |
| import { parseArgs } from 'node:util'; | |
| import { spawn } from 'node:child_process'; | |
| import { setTimeout } from 'node:timers/promises'; | |
| import prettyBytes from 'pretty-bytes'; | |
| import prettyMilliseconds from 'pretty-ms'; | |
| let { values, positionals } = parseArgs({ | |
| args: process.argv.slice(2), | |
| allowPositionals: true, |
| #!/usr/bin/env node | |
| import * as fs from 'node:fs'; | |
| import csvParser from 'csv-parser'; | |
| const [csvFile, sku] = process.argv.slice(2); | |
| if (!fs.existsSync(csvFile) || !sku) { | |
| console.error('Usage: ./report.mjs [CSV file] [SKU]'); | |
| process.exit(1); | |
| } |
| const nextProgress = (progress: number) => { | |
| switch (true) { | |
| case progress < 40: { | |
| return progress + 40 + Math.random() * 10; | |
| } | |
| case progress < 60: { | |
| return progress + 8 + Math.random() * 2; | |
| } | |
| case progress < 80: { | |
| return progress + 3 + Math.random() * 2; |
$pm add vite
# should be success
$pm run vite --version
# shoud be fail
$pm run esbuild --version
| // Convert Wikipedia page articles dump (XML) into a stream of JSON | |
| // { id: 0, "title": "...", "text": "..." } | |
| // The "text" field format will also be converted into plain text | |
| import * as path from 'node:path'; | |
| import * as fs from 'node:fs'; | |
| import XMLParser from 'node-xml-stream'; | |
| import ndjson from 'ndjson'; | |
| import instaview from 'instaview'; | |
| import htmlEntities from 'html-entities'; |
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="utf-8" /> | |
| <meta name="viewport" content="width=device-width, initial-scale=1" /> | |
| <title>SharedArrayBuffer GC test</title> | |
| </head> | |
| <body> | |
| <div id="root"></div> | |
| <script type="module"> |