bvaughn

React lifecycle cheatsheet

Method	Side effects1	State updates2	Example uses
Mounting
componentWillMount		✓	Constructor equivalent for createClass
render			Create and return element(s)
componentDidMount	✓	✓	DOM manipulations, network requests, etc.
Updating
componentWillReceiveProps		✓	Update state based on changed props

leveled

:profile start profile.log
:profile func *
:profile file *
" At this point do slow actions
:profile pause
:noautocmd qall!

thegitfather

Vanilla JavaScript Quick Reference / Cheatsheet

Just migrated it from Codepen.io to markdown. Credit goes to David Conner.

Working with DOM	Working with JS	Working With Functions
Accessing Dom Elements	Add/Remove Array Item	Add Default Arguments to Function
Grab Children/Parent Node(s)	Add/Remove Object Properties	Throttle/Debounce Functions
Create DOM Elements	Conditionals

christiangenco

Download videos from egghead

1. Install the React Developer Tools Chrome Extension.

2. Go to the egghead website, i.e. Getting Started with Redux

3. Click View -> Developer -> Javascript Console, then the React tab, then the <NextUpLessonList ...> tag.

4. Click back to the Console tab, then run:

gokulkrishh

/* 
  ##Device = Desktops
  ##Screen = 1281px to higher resolution desktops
*/

@media (min-width: 1281px) {
  
  /* CSS */
  

jason5ng32

[General]
loglevel = notify
skip-proxy = 127.0.0.1, 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12, 100.64.0.0/10, localhost, *.local, ::ffff:0:0:0:0/1, ::ffff:128:0:0:0/1
bypass-tun = 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12

# dns-server = 119.29.29.29,223.5.5.5,114.114.115.115
# external-controller-access = [email protected]:6155
# ipv6 = true

// REMEMBER TO CHANGE THE external-controller-access' PASSWORD

soffchen

[General]
skip-proxy = 127.0.0.1, 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12, 100.64.0.0/10, localhost, *.local, ::ffff:0:0:0:0/1, ::ffff:128:0:0:0/1
bypass-tun = 192.168.0.0/16, 10.0.0.0/8, 172.16.0.0/12
# dns-server = 119.29.29.29, 223.5.5.5, 114.114.114.114
loglevel = notify

[Proxy]
BJ-All = custom
BJ-HK-Azure = custom
BJ-US-Azure = custom

janlay

Install

1. Modify index.txt with your output path and proxy info
2. Use Text Builder to build configuration for Surge: $ text-builder -index /path/to/index.txt Or run $ sh build-all to build all your index files.
3. Import configuration via AirDrop/iTunes/Dropbox/iCloud

本人不提供任何保证和技术支持，使用者自负风险。
There are no guarantees, no any support. Use it at your own risk.

paulirish

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

atcuno

The purpose of this document is to make recommendations on how to browse in a privacy and security conscious manner. This information is compiled from a number of sources, which are referenced throughout the document, as well as my own experiences with the described technologies.

I welcome contributions and comments on the information contained. Please see the How to Contribute section for information on contributing your own knowledge.

Table of Contents

• Motivation
• Audience
• TL;DR?
• Updates
• Technologies that Affect Security and Privacy