ndkhoa

# Step 1: Import the random module
import random

# Step 2: Define a class for cards
class Card:
    def __init__(self, rank, suit):
        self.rank = rank # an integer from 3 to 15 (3 is lowest and 15 is highest)
        self.suit = suit.lower() # a string from "spades", "clubs", "diamonds", or "hearts"

    def __str__(self):

ndkhoa

HTTP status code symbols for Rails

Thanks to Cody Fauser for this list of HTTP responce codes and their Ruby on Rails symbol mappings.

Status Code Symbol
1xx Informational
100 :continue
101 :switching_protocols
102 :processing

ndkhoa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

ndkhoa

Handling Multiple Github Accounts on MacOS

The only way I've succeeded so far is to employ SSH.

Assuming you are new to this like me, first I'd like to share with you that your Mac has a SSH config file in a .ssh directory. The config file is where you draw relations of your SSH keys to each GitHub (or Bitbucket) account, and all your SSH keys generated are saved into .ssh directory by default. You can navigate to it by running cd ~/.ssh within your terminal, open the config file with any editor, and it should look something like this:

Host *
 AddKeysToAgent yes

> UseKeyChain yes

ndkhoa

FROM alpine

RUN apk add --update --no-cache nodejs
RUN npm i -g yarn

ADD package.json yarn.lock /tmp/
ADD .yarn-cache.tgz /

RUN cd /tmp && yarn
RUN mkdir -p /service && cd /service && ln -s /tmp/node_modules

ndkhoa

version: '2.2'
services:
  elasticsearch:
    image: docker.elastic.co/elasticsearch/elasticsearch:6.4.1
    container_name: elasticsearch
    environment:
      - cluster.name=docker-cluster
      - bootstrap.memory_lock=true
      - "ES_JAVA_OPTS=-Xms512m -Xmx512m"
    ulimits:

ndkhoa

#The snippet generator for RcovPublisher in Jenkins is incomplete. 
#When you add in metric values for desired coverage percentages, the generator doesnt provide the syntax.
#Here it is served up on a silver platter.

step([$class: 'RcovPublisher', reportDir: 'coverage/rcov', targets: [[$class: 'hudson.plugins.rubyMetrics.rcov.model.MetricTarget', metric: 'TOTAL_COVERAGE', healthy: 87, unhealthy: 86, unstable:85], [$class: 'hudson.plugins.rubyMetrics.rcov.model.MetricTarget', metric: 'CODE_COVERAGE', healthy: 87, unhealthy: 86, unstable: 85]]])

ndkhoa

Link full khóa training device driver của embedded Linux ở đây nhé các bạn. Đây là video mình record trong khóa trước, do bị mắc 1 số lỗi về quay phát nên mình sẽ record lại trong khóa hiện tại mình đang dạy.
Bài 1: Kernel module - simple character device.
https://bit.ly/2AzsxrB
Bài 2: Giới thiệu về cơ chế timer trong hệ điều hành.
https://bit.ly/2O2rDpy
Bài 3: Hướng dẫn lập trình điều khiển interrupt trong Linux
kernel. https://bit.ly/2vtenmk
Bài 4: Giới thiệu về cơ chế system call trên Linux.
https://bit.ly/2KkXm32
Bài 5: Giới thiệu về kỹ thuật IPC - Inter Process Communication.

ndkhoa

# Set variables in .bashrc file

# don't forget to change your path correctly!

export GOPATH=$HOME/golang
export GOROOT=/usr/local/opt/go/libexec
export PATH=$PATH:$GOPATH/bin
export PATH=$PATH:$GOROOT/bin

ndkhoa

Oh my zsh.

Install with curl

sh -c "$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)"

Enabling Plugins (zsh-autosuggestions & zsh-syntax-highlighting)

• Download zsh-autosuggestions by