baptistemanson’s gists

baptistemanson / redux-from-the-trenches-7.js

Last active July 20, 2017 20:47

	const getGroupsById = (state, ids) => ids.map(id => state.groups[id])
	const getUsersWithGroupsById = (state, ids) => ids.map(id => ({...state.users[id], groups: getGroupsById(state.users[id].groups)}))

baptistemanson / parallel.js

Created June 29, 2018 07:16

Node can use several threads, even if you only write JS

	const fs = require("fs");
	const util = require("util");

	const readFile = util.promisify(fs.readFile);

	async function long() {
	const content = await readFile("./dummy1000000.csv", "utf-8");
	content.split(/\n/);
	}
	const arr = [];

baptistemanson / parent-to-child.js

Created July 9, 2018 15:11

Bubbling

	import React, { Component } from "react";
	import logo from "./logo.svg";
	import "./App.css";

	const Child = ({ onClick }) => <button onClick={onClick}>Click me</button>;

	class Parent extends Component {
	field = "hello";

	handleClick = e => {

baptistemanson / night-day.jsx

Created July 17, 2018 01:27

changing component with time

	// css is
	// .day {color: black; background-color:white}
	// .night {color: white; background-color:blue}

	const DivChanging = ({ text }) => {
	if (new Date().getHours() > 12) {
	return <div class="night">{text}</div>;
	} else {
	return <div class="day">{text}</div>;
	}

baptistemanson / schema.json

Last active January 29, 2019 20:02

	{
	"$schema": "http://json-schema.org/draft-07/schema#",
	"$id": "http://shone.com/anorak.json",
	"title": "Anorak",
	"description": "Portable Realtime Maritime Navigational Data Protocol",
	"oneOf": [
	{ "$ref": "#subscribeMessage" },
	{ "$ref": "#unsubscribeMessage" },
	{ "$ref": "#getMessage" },
	{ "$ref": "#deltaMessage" },

baptistemanson / lwr.js

Created February 28, 2020 04:59

	async function scrapeProduct (url) {

	// the same code as you have ...

	return {srcText, price, title};
	}

	async function main() {
	const results = await scrapeProduct("...");
	// here you can do something with results = {srcText, price, title};

baptistemanson / gist:b2e1dd24022b493511203a217a215c39

Last active July 9, 2020 17:45

How many collision can I test in JS per frame.js

	function isInside(pos, rect) {
	return (
	pos[0] > rect[0] && pos[1] > rect[1] && pos[0] < rect[2] && pos[1] < rect[2]
	);
	}
	const rect1 = new Uint16Array([10, 10, 100, 1000]);
	const rect2 = new Uint16Array([0, 0, 10, 10]);

	const pos1 = new Uint16Array([250, 50]);
	const pos2 = new Uint16Array([20, 20]);

baptistemanson / gist:23a2a1b2ad23845a6dd1e04ceab5b610

Created January 11, 2021 01:55

stack trace

	thread 'main' panicked at 'assertion failed: `(left == right)`
	left: `Ok(())`,
	right: `Err(ERROR_DEVICE_LOST)`', C:\Users\Baptiste\.cargo\git\checkouts\gfx-e86e7f3ebdbc4218\0244e34\src\backend\vulkan\src\lib.rs:1476:9
	note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
	thread 'main' panicked at 'assertion failed: `(left == right)`
	left: `1`,
	right: `0`: Allocator dropped before all sets were deallocated', C:\Users\Baptiste\.cargo\git\checkouts\gpu-descriptor-a05b99db0270c787\df74fd8\gpu-descriptor\src\allocator.rs:117:9
	stack backtrace:
	0: 0x7ff7e7edea0e - std::backtrace_rs::backtrace::dbghelp::trace
	at /rustc/e1884a8e3c3e813aada8254edfa120e85bf5ffca\/library\std\src\..\..\backtrace\src\backtrace\dbghelp.rs:108

baptistemanson / struct.js

Created February 10, 2021 20:37

demo hashmap to structs

	const fs = require("fs");

	function dateCompress(d) {
	return d.replace(/\.\d{3}\+\d{2}:\d{2}$/g, "Z");
	}

	function getSize(d) {
	return Math.ceil(d.length / 1024).toLocaleString() + "kB";
	}

baptistemanson / game-of-life.js

Created March 25, 2022 11:55

Baptiste Manson baptistemanson