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JXA Resources

Revised: 2019-11-28 16:16 GMT-6

This is a list of the key resources I have found useful. If you know of others, please post in a comment below, and I will add to this list.

I have tried to order this list in the order that, to me, is best for learning JXA from scratch. We all learn a bit diferently, so adjust to suit your style/needs. Please post if you have suggestions on learning JXA.

JJY.js: JJY time signal emulation/transmission library

Usage

Make sure that the watch/clock is configured to receive JJY 40 KHz signal (for most Casio Waveceptor/G-Shock watches, the easiest way is to enter the engineer menu by pressing Mode+Light+Receive and select J 40 reception mode, for all other watches you need to set the home city to Tokyo)
Make sure your device clock is in sync before running the emulator.
From the page, run:

Handy Git commands

Show list of commits with hash: git log
Show file at revision: git show REVISION:path/to/file
Roll back to revision: git reset --hard REVISION
Revert a file to revision: git checkout REVISION path/to/file
Get my colleague's file version during a merge: git checkout --theirs path/to/file
Add a remote : git remote add origin https://github.com/user/repo.git
Force unstash : git stash show -p | git apply && git stash drop

DigitalOcean Promo Code 2026 / $200 - $400 / 2-Months Valid

DigitalOcean offers substantial discounts for new users via exclusive promo codes. These codes provide free credits ranging from $10 to $200 to experience DigitalOcean's cloud services.

This guide provides:

A list of currently active and latest DigitalOcean promo codes with applicable credit amounts, services, expiry dates and terms.
Step-by-step instructions to easily redeem codes as a new user, along with tips to maximize promotional savings.
One special offer that will give you free credits that is valid for 2 months.

Creating tarballs from LXC containers

NOTE: this is about tarring up plain LXC (i.e. not LXD) containers without the benefits of btrfs or similar

shut down the respective container, e.g.

lxc-stop mycontainer

I'm learning unity by redoing old projects or scenes of videogames (coming from a webGL background), and documenting things I get stuck on, as well as findings.

OpenUPM (and other UPM)

Basically npm for Unity. Just need to add dependencies and scopedRegistries to Packages/manifest.json, Unity will detect the change and install the package.

Importing upm packages in a shader (ShaderLab)

Add this line in CGPROGRAM, after #include "UnityCG.cginc":

#include "Packages/jp.keijiro.noiseshader/Shader/SimplexNoise2D.hlsl"

	export const db = [
	{
	id: 1,
	name: 'Lukather',
	image: 'guitarra_01',
	description: 'Morbi ornare augue nisl, vel elementum dui mollis vel. Curabitur non ex id eros fermentum hendrerit.',
	price: 299,
	},
	{
	id: 2,

	Git team workflow - merging and rebasing

	0. git checkout [branch]
	1. git push origin [branch]
	2. git checkout master
	3. git pull --rebase
	4. git checkout [branch]
	5. git rebase master

	(6.) git mergetool / git rebase --continue

	const float PI = 3.141592653589793;

	vec2 rotateUV(vec2 uv, float rotation)
	{
	float mid = 0.5;
	return vec2(
	cos(rotation) * (uv.x - mid) + sin(rotation) * (uv.y - mid) + mid,
	cos(rotation) * (uv.y - mid) - sin(rotation) * (uv.x - mid) + mid
	);
	}

	import math
	import argparse
	from sympy.combinatorics import Permutation

	def bits_for_value(value):
	return int(math.log2(value))

	def decompose(N, R):
	logN2 = bits_for_value(N)
	logR2 = []