jinhucheung

# edit and save this file to /usr/lib/systemd/system/clash.service
[Unit]
Description=clash
After=network.target

[Service]
WorkingDirectory="your home directory"/.config/clash
ExecStart="your home directory"/.config/clash/start-clash.sh
ExecStop="your home directory"/.config/clash/stop-clash.sh
Environment="HOME=your home directory"

jinhucheung

MacOS X + oh my zsh + powerline fonts + visual studio code (vscode) terminal settings

Thank you everybody, Your comments makes it better

Install oh my zsh

http://ohmyz.sh/

sh -c "$(curl -fsSL https://raw.github.com/ohmyzsh/ohmyzsh/master/tools/install.sh)"

jinhucheung

require 'matrix'

def regression x, y, degree
  x_data = x.map {|xi| (0..degree).map{|pow| (xi**pow) }}
  mx = Matrix[*x_data]
  my = Matrix.column_vector y

  ((mx.t * mx).inv * mx.t * my).transpose.to_a[0].reverse
end

jinhucheung

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails", branch: "main"

jinhucheung

# frozen_string_literal: true

require "bundler/inline"

gemfile(true) do
  source "https://rubygems.org"

  git_source(:github) { |repo| "https://github.com/#{repo}.git" }

  gem "rails", github: "rails/rails", branch: "main"

jinhucheung

Keybase proof

I hereby claim:

• I am jinhucheung on github.
• I am jimcheung (https://keybase.io/jimcheung) on keybase.
• I have a public key ASDIzFeTb1RCv3e6DqnACC5VHEdUPy5x605V-s4Fn4YW4Qo

To claim this, I am signing this object:

jinhucheung

require 'singleton'
require 'forwardable'

class Postman
  include Singleton
  
  class << self
    extend Forwardable
    
    def_delegators :instance, :post, :delete