Terkel terkelg

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Amazon Web Services (AWS) & Google Cloud Platform (GCP) explained in simple English

This guide is only representative from my point of view and it may not be accurate and you should go on the official AWS & GCP websites for accurate and detailed information. It's initially inspired by AWS in simple English and GCP for AWS professionals. The idea is to compare both services, give simple one-line explanation and examples with other software that might have similiar capabilities. Comment below for suggestions.

Category	Service	AWS	GCP	Description	It's like
Compute	IaaS	Amazon Elastic Compute Cloud (EC2)	Google Compute Engine	Type-1 virtual servers	VMware ESXi, Citrix XenServer
	PaaS	AWS Elastic Beanstalk	Google App Engine	Running your app on a platform

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.

	#!/usr/bin/env bash

	# A basic Self Signed SSL Certificate utility
	# by Andrea Giammarchi @WebReflection

	# https://www.webreflection.co.uk/blog/2015/08/08/bringing-ssl-to-your-private-network

	# # to make it executable and use it
	# $ chmod +x certificate
	# $ ./certificate # to read the how-to

	ffmpeg -i <your movie file> -vf scale=1:1 <output folder>/%06d.png

	convert +append <output folder>/* out.png

	mogrify -scale x50\! out.png

	Credit : https://www.reddit.com/r/dataisbeautiful/comments/3rb8zi/the_average_color_of_every_frame_of_a_given_movie/cwmn4q2

	/**

	WHAT: A very simple example of redux + redux-simple-router using Typescript.

	WHY: The official example found here: https://github.com/rackt/redux-simple-router/tree/1.0.2/examples/basic has problems:
	1) it is spread over many files making it very hard to "skim"
	2) it is organized by function, not by feature. (Example: learning "how to manipulate redux state" is spread over 5 files in 4 folders)
	3) there are no comments explaining what's going on/why.

	WHO: by [email protected]

	float levelChannel(float inPixel, float inBlack, float inGamma, float inWhite, float outBlack, float outWhite) {
	return (pow(((inPixel * 255.0) - inBlack) / (inWhite - inBlack), inGamma) * (outWhite - outBlack) + outBlack) / 255.0;
	}

	vec3 levels(vec3 inPixel, float inBlack, float inGamma, float inWhite, float outBlack, float outWhite) {
	vec3 o = vec3(1.0);
	o.r = levelChannel(inPixel.r, inBlack, inGamma, inWhite, outBlack, outWhite);
	o.g = levelChannel(inPixel.g, inBlack, inGamma, inWhite, outBlack, outWhite);
	o.b = levelChannel(inPixel.b, inBlack, inGamma, inWhite, outBlack, outWhite);
	return o;

	const I = x => x
	const K = x => y => x
	const A = f => x => f (x)
	const T = x => f => f (x)
	const W = f => x => f (x) (x)
	const C = f => y => x => f (x) (y)
	const B = f => g => x => f (g (x))
	const S = f => g => x => f (x) (g (x))
	const S_ = f => g => x => f (g (x)) (x)
	const S2 = f => g => h => x => f (g (x)) (h (x))

	const iterable = function* (obj) {
	yield* Object.keys(obj).map(key => [key, obj[key]]);
	};

	.cursor {
	cursor: url("cursor.png") 0 0, pointer; /* Legacy */
	cursor: url("cursor.svg") 0 0, pointer; /* FF */
	cursor: -webkit-image-set(url("cursor.png") 1x, url("[email protected]") 2x) 0 0, pointer; /* Webkit */
	}