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Mark Cowan battlesnake

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battlesnake / react-context.js

Created October 28, 2023 15:28

Playing with react Context hook, in playcode.io/react

 import React from 'react';
 const Ctx = React.createContext();
 function Editor(props) {
   const [value, setValue] = React.useContext(Ctx);
   return (
     <input type="number" value={value} onChange={React.useCallback(e => setValue(e.target.value), [])} />
   );
 }

battlesnake / 0-spec.txt

Last active October 19, 2022 07:31

STM32H750 DMA-based memcpy performance

	Max clocks (480MHz CPU/SysTick, 240MHz AXI+AHB1+AHB2)

	Using DMA2 (in D2 domain)

	Copying 32-bit non-bursts

battlesnake / archive-old-branches.sh

Last active January 26, 2022 12:34

Archive Git branches in remote that have not received a commit for x days/weeks/months/years

	#!/usr/bin/env bash

	set -euo pipefail

	declare -a branches=()

	# Update our view of the remote
	git fetch --all

	# Read in names of branches in remote (<remote-name>/<branch-name>), excluding already-archived branches

battlesnake / audio.html

Created February 3, 2021 21:33

Dirty and simple web audio demo, plotting oscilloscope and spectrum