Shea Belsky SheaBelsky

Docker on Android 🐋📱

Edit 🎉

All packages, except for Tini have been added to termux-root. To install them, simply pkg install root-repo && pkg install docker. This will install the whole docker suite, left only Tini to be compiled manually.

Summary

Do not use forEach with async-await

TLDR: Use for...of instead of forEach() in asynchronous code.

For legacy browsers, use for(...;...;...) or [].reduce()

To execute the promises in parallel, use Promise.all([].map(...))

The problem

The Rules of React

All libraries have subtle rules that you have to follow for them to work well. Often these are implied and undocumented rules that you have to learn as you go. This is an attempt to document the rules of React renders. Ideally a type system could enforce it.

What Functions Are "Pure"?

A number of methods in React are assumed to be "pure".

On classes that's the constructor, getDerivedStateFromProps, shouldComponentUpdate and render.

Exporting your 2FA tokens from Authy to transfer them into another 2FA application

IMPORTANT - Update regarding deprecation of Authy desktop apps

Past August 2024, Authy stopped supported the desktop version of their apps:
See Authy is shutting down its desktop app | The 2FA app Authy will only be available on Android and iOS starting in August for details.

And indeed, after a while, Authy changed something in their backend which now prevents the old desktop app from logging in. If you are already logged in, then you are in luck, and you can follow the instructions below to export your tokens.

If you are not logged in anymore, but can find a backup of the necessary files, then restore those files, and re-install Authy 2.2.3 following the instructions below, and it should work as expected.

Taking back your Mandrill click-tracking links

My company, like many, has recently switched away from using Mandrill for our transactional email.

We'd been using Mandrill's [click-tracking][mandrill-click-tracking] feature, and became worried about what would happen to all those old emailed links after we cancel our Mandrill account.

Why should we care about links in emails sent a month or more ago?

Get Instagram Images via JavaScript

Get API Info

You will need the user_id from the user. This is difficult to discover at Instagram but easy from this site http://jelled.com/instagram/lookup-user-id

I used http://jelled.com/instagram/access-token for the next few steps

You will also need an access token which ends up being difficult to obtain. Log into the account and go to their Developer Page.

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

	@echo off

	SET PhpStormPath=C:\Program Files (x86)\JetBrains\PhpStorm 10.0.3\bin\PhpStorm.exe

	echo Adding file entries
	@reg add "HKEY_CLASSES_ROOT\*\shell\Open in PhpStorm" /t REG_SZ /v "" /d "Open in PhpStorm" /f
	@reg add "HKEY_CLASSES_ROOT\*\shell\Open in PhpStorm" /t REG_EXPAND_SZ /v "Icon" /d "%PhpStormPath%,0" /f
	@reg add "HKEY_CLASSES_ROOT\*\shell\Open in PhpStorm\command" /t REG_SZ /v "" /d "%PhpStormPath% \"%%1\"" /f

	echo Adding folder entries

	const flattenTco = ([first, ...rest], accumulator) =>
	(first === undefined)
	? accumulator
	: (Array.isArray(first))
	? flattenTco([...first, ...rest])
	: flattenTco(rest, accumulator.concat(first))

	const flatten = (n) => flattenTco(n, []);

	console.log(flatten([[1,[2,[[3]]]],4,[5,[[[6]]]]]))

	// the code below can be added to the end of your Reveal slide deck to implement
	// per slide theme setting via the data-theme attribute
	// I put this in right below the call to Reveal.initialize()

	// the code is smart enough to restore the previous default theme
	// (or slide specific theme) as you move forward and backward
	// it also takes into account vertical slide stacks with a data-theme
	// attribute on the outer <section> tag and allows individual vertical
	// slides to specify their own override