SheldonWangRJT

This notes is written by Sheldon. You can find me with #iOSBySheldon in Github, Youtube, Facebook, etc.

Need

Convert .mov/.MP4 to .gif

Reason

As a developer, I feel better to upload a short video when I create the pull request to show other viewers what I did in this PR. I tried .mov format directly got after finishing recording screen using Quicktime, however, gif offers preview in most web pages, and has smaller file size.

This is not limited to developer, anyone has this need can use this method to convert the files.

learner-long-life

How to get on Rinkeby Testnet in less than 10 minutes

Following instructions from the excellent https://www.rinkeby.io/

Synchronizing a Full Node

A full node lets you access all state. There is a light node (state-on-demand) and wallet-only (no state) instructions as well,

indiesquidge

Plain JavaScript objects are better than classes when they can be used, and many popular modern frameworks have adopted their use.

Consider that in React a component can be created as either a class or as an object.

// using a class
class Welcome extends React.Component {
  render() {
 Hello, {this.props.name}

nrollr

Install MongoDB on macOS Sierra

This procedure explains how to install MongoDB using Homebrew on macOS Sierra 10.12.
Official MongoDB install documentation: here

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

nrollr

Install MySQL on macOS Sierra

This procedure explains how to install MySQL using Homebrew on macOS Sierra 10.12

Install Homebrew

• Installing Homebrew is effortless, open Terminal and enter :
  $ /usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
• Note: Homebrew will download and install Command Line Tools for Xcode 8.0 as part of the installation process.

Install MySQL

At this time of writing, Homebrew has MySQL version 5.7.15 as default formulae in its main repository :

hhsnopek

Netlify DNS Setup

Quick ref for Netlify custom domains

Records

CNAME

Host: www, Value: you-netlify-site.netlify.com, TTL: 30 min

A

Host: @, Value: 198.61.251.14, TTL: 30min

jokeyrhyme

'use strict'

// ideal for use with AWS Lambda and native Node.js modules

// requires Docker: https://docs.docker.com/engine/installation/

/*
Usage:
  node docker-npm.js install
  node docker-npm.js rebuild

bpmore

1. Copy/Paste the information below to the clipboard
2. Open the spreadsheet whose sheets need to be alphabetised
3. Choose Tools > Script editor > Blank (this opens a new tab in the browser)
4. Press Control+A followed by Control+V copy and paste the script in
5. Press Control+S to save the script
6. Choose Run > sortSheets
7. Go back to the spreadsheet tab to view the new sorted tab order

--Copy everything below this line--
function sortSheets () {

Arachnid

/**
 * Base contract that all upgradeable contracts should use.
 * 
 * Contracts implementing this interface are all called using delegatecall from
 * a dispatcher. As a result, the _sizes and _dest variables are shared with the
 * dispatcher contract, which allows the called contract to update these at will.
 * 
 * _sizes is a map of function signatures to return value sizes. Due to EVM
 * limitations, these need to be populated by the target contract, so the
 * dispatcher knows how many bytes of data to return from called functions.

nrollr

#!/bin/bash
brew install redis  # Install Redis using Homebrew
ln -sfv /usr/local/opt/redis/*.plist ~/Library/LaunchAgents  # Enable Redis autostart

launchctl load ~/Library/LaunchAgents/homebrew.mxcl.redis.plist  # Start Redis server via launchctl
# homebrew.mxcl.redis.plist contains reference to redis.conf file location: /usr/local/etc/redis.conf 

redis-server /usr/local/etc/redis.conf # Start Redis server using configuration file, Ctrl+C to stop
redis-cli ping # Check if the Redis server is running