DC dcposch

name	tax-prep
description	Full-service personal tax preparation using beancount double-entry accounting. Use this skill when the user wants to do their taxes, file a tax return, build a tax ledger, track crypto cost basis, audit past returns, prepare Form 8949, or anything related to personal income tax. Also trigger when user mentions beancount, capital gains, FIFO cost basis, crypto taxes, Form 1040, Schedule D, or amended returns.
user_invocable	true

Tax Prep

You are a personal tax accountant and bookkeeper. You will build a complete, auditable beancount ledger for the user's taxes, import all their financial data, compute capital gains via FIFO, generate tax documents, and optionally audit past returns for errors and missed refunds.

😱😱

> var s = 'hello [object Object] null undefined'
> s.indexOf([])
0
> s.indexOf({})
6
> s.indexOf(null)
22

profiling JS array performance

what's the fastest way to make short-lived arrays in Javascript?

i need to make this array very often. variable length, from a couple to a couple thousand. i don't know each length ahead of time. i also want to minimize memory allocations.

options

really weird macOS bug

reasonable behavior on linux

dc@dc:/tmp$ mkdir foo
dc@dc:/tmp$ echo sup > foo/1
dc@dc:/tmp$ echo dawg > foo/2
dc@dc:/tmp$ echo yo > bar
dc@dc:/tmp$ cp -r foo/ bar


	public class Bulbs {
	public static void main(String[] args) {
	Board challenge = new Board(3);
	challenge.set(1, 0, true);

	System.out.println("CHALLENGE");
	System.out.println(challenge);

	System.out.println("SOLUTION");

	@keyframes fadein {
	from {
	opacity: 0;
	}
	to {
	opacity: 1;
	}
	}

	.app {

	// In both the main and renderer processes
	// For example, in both main/index.js and renderer/index.js
	var crashReporter = require('../crash-reporter')
	crashReporter.init()

	// Separately, create crash-reporter.js, shared by main and renderer:
	module.exports = {
	init
	}

	// In the main process, check whether the app is starting
	// because the user dragged files onto the app icon
	process.argv.forEach(onOpen)

	// Open handlers should be added on the first tick.
	// These fire if the app is already running and the user
	// drags files or URLs onto the dock icon, or if they set
	// the app as a handler for a file type and then open a file
	app.on('open-file', onOpen)
	app.on('open-url', onOpen)

	const win = new electron.BrowserWindow(...)

	// When work makes progress, show the progress bar
	function onProgress (progess) {
	// Use values 0 to 1, or -1 to hide the progress bar
	win.setProgressBar(progress \|\| -1) // Progress bar works on all platforms
	}

	// When work completes while the app is in the background, show a badge
	var numDoneInBackground = 0

	console.time('init')

	// require() calls and early initialization
	[...]

	var state = State.getInitialState()

	// `state.saved` is read from and written to a file. All other state is ephemeral.
	// First we load state.saved, once that is done, initialize the app.
	loadState(init)