Utain Wongpreaw utain

Last week, a new version (1.17) of Visual Studio Code was released. While there are many fascinating improvements and features introduced, the one that cought my eyes is "Integrated Terminal performance" section. Let's check out what they've done!

(written on 2017-10-12, based on Xterm.js v3, VS Code 1.17)

Old Performance Issue

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

#How to create a .file or .folder on Windows

There are several ways

1. Rename

Create file.txt
Rename to .file., the last dot will be dropped, you'll have .file

Works the same with a file or a directory.

Multiple SSH Keys settings for different github account

create different public key

create different ssh key according the article Mac Set-Up Git

$ ssh-keygen -t rsa -C "your_email@youremail.com"

	class Frame extends Component {
	componentDidMount() {
	this.iframeHead = this.node.contentDocument.head
	this.iframeRoot = this.node.contentDocument.body
	this.forceUpdate()
	}

	render() {
	const { children, head, ...rest } = this.props
	return (

	sudo add-apt-repository ppa:openjdk-r/ppa
	sudo apt-get update
	sudo apt-get install openjdk-7-jre

	# install openjdk
	sudo apt-get install openjdk-7-jdk

	# download android sdk
	wget http://dl.google.com/android/android-sdk_r24.2-linux.tgz

	#!/bin/bash

	# Thanks to https://gist.github.com/wenzhixin/43cf3ce909c24948c6e7
	# Execute this script in your home directory. Lines 17 and 21 will prompt you for a y/n

	# Install Oracle JDK 8
	add-apt-repository ppa:webupd8team/java
	apt-get update
	apt-get install -y oracle-java8-installer
	apt-get install -y unzip make # NDK stuff

	function toJSON(node) {
	let propFix = { for: 'htmlFor', class: 'className' };
	let specialGetters = {
	style: (node) => node.style.cssText,
	};
	let attrDefaultValues = { style: '' };
	let obj = {
	nodeType: node.nodeType,
	};
	if (node.tagName) {