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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

この文章は、 Steve Losh 氏の記事 "A Road to Common Lisp" の翻訳です。

原文はこちらです: http://stevelosh.com/blog/2018/08/a-road-to-common-lisp/

A Road to Common Lisp (Common Lisp への道)

これまで、「最近のCommon Lispをどう学ぶとよいでしょう？」と助言を求めるメールをたくさん受け取ってきました。そこで私は、これまでメールやソーシャルメディアに投稿した全てのアドバイスを書き下すことにしました。これが誰かに有益ならば幸いです。

	# ---------------------------------------------------------------------------
	#
	# Description: This file holds all my BASH configurations and aliases
	#
	# Sections:
	# 1. Environment Configuration
	# 2. Make Terminal Better (remapping defaults and adding functionality)
	# 3. File and Folder Management
	# 4. Searching
	# 5. Process Management

	# walueInt = 2
	# walueFloat = 2.56
	# walueStr = 'Pycarm

	class NoteBook:
	name: str
	npage: int
	note: str

	def __init__(self, name: str, npage: int):

	class Book:
	name: str
	npage: int

	def __init__(self, name: str, npage: int):
	self.name = name
	self.npage =npage


	workBook = Book(name='helo_teacher', npage=15)

	:020000040000FA
	:0600000014EF18F01200DD
	:0600080004EF08F01200F5
	:060018000CEF08F01200DD
	:0608000014EF18F01200D5
	:060808000FEF08F01200E2
	:0608180012EF08F01200CF
	:0610000014EF18F01200CD
	:021006000000E8
	:061008000FEF08F01200DA

	import React from 'react';
	import { editor } from 'monaco-editor';
	import IMouseTarget = editor.IMouseTarget;
	import IStandaloneCodeEditor = editor.IStandaloneCodeEditor;
	import IContentWidget = editor.IContentWidget;

	const { ContentWidgetPositionPreference } = editor;

	export type TDropHandler = (e: React.DragEvent, target: IMouseTarget, instance: IStandaloneCodeEditor) => void;
	export type TInstanceGetter = () => IStandaloneCodeEditor;

	#!/usr/bin/env bash

	# Abort sign off on any error
	set -e

	# Start the benchmark timer
	SECONDS=0

	# Repository introspection
	OWNER=$(gh repo view --json owner --jq .owner.login)

	So you've cloned somebody's repo from github, but now you want to fork it and contribute back. Never fear!

	Technically, when you fork "origin" should be your fork and "upstream" should be the project you forked; however, if you're willing to break this convention then it's easy.

	* Off the top of my head *

	1. Fork their repo on Github
	2. In your local, add a new remote to your fork; then fetch it, and push your changes up to it

	git remote add my-fork git@github...my-fork.git

	<!DOCTYPE html>
	<html>

	<head>
	<meta charset="utf-8">
	<title>High Resolution Canopy Height</title>
	<meta name="viewport" content="initial-scale=1,maximum-scale=1,user-scalable=no">
	<link href="https://api.mapbox.com/mapbox-gl-js/v3.2.0/mapbox-gl.css" rel="stylesheet">
	<script src="https://api.mapbox.com/mapbox-gl-js/v3.2.0/mapbox-gl.js"></script>
	<style>