@kon_yu

@kon_yu

May 28

Installing the latest version of Ruby on Raspberry pi

#raspberrypi #ruby

1

2 min read

@kon_yu

May 28

How to register DockerImage to DockerHub

#ruby #docker #centos

1

4 min read

@kon_yu

May 28

How to check the connection between mysql and memcached in php

#php #mysql #memcached

1

2 min read

@kon_yu

May 28

How to add a package not found by apt-get(debian, ubuntu both)

#aptget #debian #aptaddrepository #ubuntu

1

2 min read

@kon_yu

May 28

Autoprefixer Rails autoprefixer-rails

#autoprefixer #rails #autoprefixerrails

1

2 min read

@kon_yu

May 28

How to run multiple bash commands in CMD and docker-compose.yml of Dockerfile

#bash #dockercompose #docker

2

1 min read

@kon_yu

May 28

Daily backup of production staging using a Docker container for Heroku maintenance that can be deployed to Heroku

#heroku #docker #backup

1

3 min read

@kon_yu

May 28

How to use Hubot with Slack to build, debug, and deploy to Heroku in a local environment

#hubot #slack

1

4 min read

@kon_yu

May 28

Using select2 in ActiveAdmin by using activeadmin_addons

#rails #activeadmin #select2

1

2 min read

@kon_yu

May 28

How to change the table used in DelayedJob

#delayedjob #rails

3

2 min read

@kon_yu

May 26

How to terminate Vim / Vi

#vim #vi

1

1 min read

@kon_yu

May 26

How to realize caching in Ruby classes

#ruby #rails

4

3 min read

@kon_yu

May 26

Performance comparison between SQL cache and variables in Rails, 7000 times difference

#rails

7

3 min read

@kon_yu

May 25

How to install jupyter notebook on Ubuntu 16.04

#jupyter #ubuntu1604

1

1 min read

@kon_yu

May 25

Get the list of classes connected to the DB

#rails #rails5

3

1 min read

@kon_yu

May 25

Explore files under a specific directory in Rails

#ruby #rails

1

1 min read

@kon_yu

May 25

Get the list of attributes and columns of the inheritance class of ActiveRecord

#ruby #rails

1

2 min read

@kon_yu

May 25

How to check if a particular method exists in a Ruby class and instance

#ruby

1

1 min read

@kon_yu

May 23

Convenient because updated_at does not update without changing the attributes of ActiveRecord and does not issue any extra SQL.

#rails

3

2 min read

@kon_yu

May 23

Determine if a particular validation error is occurring in AcitiveRecord

#railsrails5

2

2 min read

@kon_yu

May 23

How to use Artillery for load testing with different input values

#artillery

2

2 min read

@kon_yu

May 22

Why you shouldn't use current time to refine a batch run

1

3 min read

@kon_yu

May 22

Building AWS SAM environment and running Lambda with Ruby

#aws #sam #ruby #lambda

5

4 min read

@kon_yu

May 22

Deploying with AWS SAM Running Lambda in Ruby

#aws #sam

1

4 min read

@kon_yu

May 22

Organizing the behavior of even and odd in :nth-child

#css

1

2 min read

@kon_yu

May 22

How to handle Enum in ActiveRecord

#rails

1

2 min read

@kon_yu

May 22

Error handling in begin rescue verifies that errors encountered during rescue can be rescued.

#ruby

1

1 min read

@kon_yu

May 21

How to check the operation of Gatsby on a smartphone or other device that is under development in a local network

#gatsby

3

1 min read

@kon_yu

May 21

How to encode/decode base64 with JS

#javascript

4

1 min read

@kon_yu

May 21

Checking the user information that is being accessed by AWS-CLI

#awscli

1

1 min read

@kon_yu

May 21

How to copy the path of the current directory to the clipboard (mac)

#mac #bash #zsh

1

1 min read

@kon_yu

May 21

Output TouchDesinger's output to webcam for mac

#touchdesigner #webcam #camtwist

1

1 min read

@kon_yu

May 21

Make the default of a variable of type Metabase date relative

#metabase #postgres

3

1 min read

skills/languages

learning/trying

Installing the latest version of Ruby on Raspberry pi

How to register DockerImage to DockerHub

How to check the connection between mysql and memcached in php

How to add a package not found by apt-get(debian, ubuntu both)

Autoprefixer Rails autoprefixer-rails

How to run multiple bash commands in CMD and docker-compose.yml of Dockerfile

Daily backup of production staging using a Docker container for Heroku maintenance that can be deployed to Heroku

How to use Hubot with Slack to build, debug, and deploy to Heroku in a local environment

Using select2 in ActiveAdmin by using activeadmin_addons

How to change the table used in DelayedJob

How to terminate Vim / Vi

How to realize caching in Ruby classes

Performance comparison between SQL cache and variables in Rails, 7000 times difference

How to install jupyter notebook on Ubuntu 16.04

Get the list of classes connected to the DB

Explore files under a specific directory in Rails

Get the list of attributes and columns of the inheritance class of ActiveRecord

How to check if a particular method exists in a Ruby class and instance

Convenient because updated_at does not update without changing the attributes of ActiveRecord and does not issue any extra SQL.

Determine if a particular validation error is occurring in AcitiveRecord

How to use Artillery for load testing with different input values

Why you shouldn't use current time to refine a batch run

Building AWS SAM environment and running Lambda with Ruby

Deploying with AWS SAM Running Lambda in Ruby

Organizing the behavior of even and odd in :nth-child

How to handle Enum in ActiveRecord

Error handling in begin rescue verifies that errors encountered during rescue can be rescued.

How to check the operation of Gatsby on a smartphone or other device that is under development in a local network

How to encode/decode base64 with JS

Checking the user information that is being accessed by AWS-CLI

How to copy the path of the current directory to the clipboard (mac)

Output TouchDesinger's output to webcam for mac

Make the default of a variable of type Metabase date relative

@kon_yu

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