Skip to content

Instantly share code, notes, and snippets.

View myfonj's full-sized avatar

Michal Čaplygin myfonj

4 followers · 17 following
View GitHub Profile
@myfonj
myfonj / stringToBigInt.js
Last active February 27, 2024 11:29
// https://stackoverflow.com/questions/40958727/javascript-generate-unique-number-based-on-string
(() => {
function base0xFFFFtoBigInt(str) {
const base = BigInt(0xFFFF);
let result = BigInt(0);
let pow = 0;
let i = str.length;
while (i-->0) {
const charCode = BigInt(str.charCodeAt(i));
@myfonj
myfonj / objectStringifyToWallOfTextWithFullPaths.js
Last active February 2, 2024 19:48
Object Stringify to Wall of Text With Full Paths
/**
* Wall of text
* @param {Object} inputVar
* @returns {string}
* @description Takes nested object ("JSON") and returns its serialized "wall of text" representation:
* - Each scalar value is printed on its own line, after its full path.
* - Strings are quoted.
* - Complex values are converted to their string representation.
* - Dates are converted to ISO 8601 strings.
* Input:
@myfonj
myfonj / semver.2.0.0.modified.bnf
Last active October 16, 2023 12:19
semver.bnf
# taken from https://semver.org/spec/v2.0.0.html#backusnaur-form-grammar-for-valid-semver-versions
# modified to be "more clear"
<semver> ::= <version>
| <version> "-" <pre>
| <version> "+" <build>
| <version> "-" <pre> "+" <build>
<version> ::= <major> "." <minor> "." <patch>
@myfonj
myfonj / hn-front-page-post-age-ago-vs-title.js
Last active October 13, 2023 12:33
(() => {
let nowTS = Date.now();
const archiveDate = document.location.href.match(/web.archive.org\/web\/([0-9]+)/);
if (archiveDate) {
const c = archiveDate[1].match(/(....)(..)(..)(..)(..)(..)/);
const d = new Date(`${c[1]}-${c[2]}-${c[3]}T${c[4]}:${c[6]}:${c[6]}Z`);
nowTS = d.getTime();
}
const ageSpans = document.querySelectorAll('.age[title]');
const data = Array.from(ageSpans).map(
@myfonj
myfonj / prompts.md
Last active September 14, 2023 18:16
LLM chat prompts

Could you point out any grammatical errors or instances of awkward or unnatural phrasing I’ve made in this conversation? Please skip minor typos that result in non-existent words, but do let me know if I’ve used the wrong word entirely. Please format the feedback with the original and corrected versions on separate lines, and bold the differences.

@myfonj
myfonj / TEST_favourites_export_toolbar_folder_with_24_datauri_tabs.html
Last active August 5, 2023 19:22
TEST_favourites_export_toolbar_folder_with_24_datauri_tabs.html
<!DOCTYPE NETSCAPE-Bookmark-file-1>
<!-- This is an automatically generated file.
It will be read and overwritten.
DO NOT EDIT! -->
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=UTF-8">
<TITLE>Bookmarks</TITLE>
<H1>Bookmarks</H1>
<DL><p>
<DT><H3 ADD_DATE="1655563812" LAST_MODIFIED="1691227111" PERSONAL_TOOLBAR_FOLDER="true">Favourites bar</H3>
<DL><p>
@myfonj
myfonj / eval-repl-bookmarklet.js
Last active July 24, 2023 22:09
Bookmarklet using window.prompt as a REPL interface for current page. Keywordable.
javascript: (() => {
let doPrompt = true;
let promtLabel = '';
let promptValue = '%s';
if (promptValue == '\u0025s') {
promtLabel = 'Eval:';
promptValue = '/* Expression like */ 1 + 1';
} else {
doPrompt = false;
}
@myfonj
myfonj / capo.svg
Last active June 26, 2023 01:18 — forked from rviscomi/capo.svg
RE: How do I add this emoji to the middle of the SVG? 👤
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
@myfonj
myfonj / readme.md
Last active April 3, 2023 21:42

See [base64-png], [SVG-in-HTML].

[base64-png]:

@myfonj
myfonj / answer.md
Created January 12, 2023 01:40
NO-JS game remarks

https://stackoverflow.com/questions/75090143/how-to-write-tic-tac-toe-game-against-computer-using-only-html-and-css-no-js

I'm not sure such question belongs on SO, before mods will chime in, welcome and have a couple of remarks:

1. Anchors and ":target"s

This could save some duplicate positions. Instead of checkboxes and state tree, you can merge identical positions into single one and switch them like

<style>div:not(:target){display:none}</style>
<a href="#s00">start</a>
<div id="s00"><a href="#s01">1</a></div>