mindon mindon

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zig, deno and hx, sometimes go & qt

mindon / db$.js

Created May 7, 2023 17:06

simple api to using indexeddb

	const _DT = {id: 'de', name: 'data'};
	// indexeddb
	export function db$(id, name, todo) {
	if (!win.indexedDB) {
	return;
	}
	const { mode = "readonly" } = todo;
	let req = indexedDB.open(id);
	req.onsuccess = (evt) => {
	const db = evt.target.result;

mindon / fraction.js

Last active November 21, 2024 09:54

try to get a fraction of a number

	// fraction gets up/down from a number
	export function fraction(v: number, { precise = 5, tries = 100 }): string {
	const [ul, dl] = [[0, 1], [1, 0]];
	const max = parseInt((v - Math.floor(v)).toString().substring(2));
	let [previous, current] = [NaN];
	let c = v;
	for (let i = 2; i < tries; i++) {
	const n = Math.floor(c);
	const uc = n * ul[i - 1] + ul[i - 2];
	if (Math.abs(ul[i]) > max) {

mindon / class-reuse.js

Created November 3, 2022 07:38

use (selector) in class to reuse classes from first element of selector

	// (selector) in class to reuse classes from first element of selector
	// define a class-ref <div id="my" class="a b c d"></div>
	// use class ref <div class="ref x y (#my) z"></div>
	// result in <div class="ref x y a b c d z"></div>
	function refClass(root) {
	[].slice.apply((root \|\| document).querySelectorAll('.ref')).forEach(d => {
	const c = d.className.replace(/$[:#.]?[\w.-]+$/g, (s) => {
	const q = s.charAt(1) == ':'
	? `[class-ref="${s.substr(2, s.length - 3)}"]`
	: s.substr(1, s.length -2);

mindon / qconvert.ts

Last active October 11, 2022 03:26

qconvert typescript for deno, a Quantum Computing Language Converter

	// qconvert for deno
	// updated: 2022-10-11, Mindon<[email protected]>
	// e.g. `deno run --allow-read --allow-write --unstable qconvert.ts -i hello.qasm -s qasm -o hello.quil -t quil`
	// original: https://github.com/quantastica/qconvert-js

	import { default as QuantumCircuit } from "npm:quantum-circuit";
	import { parse } from "https://deno.land/std/flags/mod.ts";
	import { exists } from "https://deno.land/std/fs/mod.ts";
	import { assert } from "https://deno.land/std/testing/asserts.ts";

mindon / cadder.go

Last active March 22, 2023 02:19

Simple command tool to start|stop|reload CaddyServer in current directory without merging all configs into one (for Caddy2+)

	package main

	// cadder to start\|stop\|reload simple caddy servers in current directory, without merge all configs into one
	// example: /site0/Caddyfile, /site1/caddy.json, `cd /site0/ && cadder start` then `cd /site1/ && cadder start``
	//
	// How to build cadder?
	// you need download and install golang from <https://go.dev/dl/> then `go build cadder.go`
	//
	// author: [email protected]
	// created: 2022-07-14

mindon / git-a-patch-zip.sh

Last active November 29, 2024 03:16

patch last git submit as a zip

git diff HEAD@{1} --diff-filter=ACMR --name-only -z | xargs -0 git archive HEAD -o patch_$(date +'%Y%m%d').zip --

mindon / ipr.ts

Last active June 16, 2022 03:29

deno typescript server to provide ip external for client or visitor at server

	import {
	serve,
	type ConnInfo,
	type Handler,
	type ServeInit,
	} from 'https://deno.land/[email protected]/http/server.ts';

	function assertIsNetAddr(addr: Deno.Addr): asserts addr is Deno.NetAddr {
	if (!['tcp', 'udp'].includes(addr.transport)) {
	throw new Error('Not a valid network address');

mindon / optimize-embed-images-size-in-svg.js

Created May 26, 2022 12:36

Let's say, what if your designer providing a svg file with large embedded images... how to optimize the svg file size?

	(function(svgdoc, scale) {
	// optimize large embed images in a svg
	// usage: <html><body><svg>your own real svg with too large embeded images...</svg><script src="optimize-embed-images-size-in-svg.js">< /script></body></html>
	// author: [email protected]

	function optimize(img, cb) {
	const src = img ? img.getAttribute("xlink:href") : undefined;
	let c = document.createElement("canvas");
	const done = () => {
	cb && cb();

mindon / lost-in-cos.go

Created May 25, 2022 11:12

Find any file sync failed folders under Tencent Cloud COS bucket 查找腾讯云COS有同步(移动)失败文件的文件夹

mindon / drc_hook.rb

Created April 6, 2022 02:35

hook (previouse) for KLayout DRC, put this file under folder bin-release/drc/