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Jan 17, 2017 • 2 min read

Generate Square Thmumblnail by mini_magick[Ruby]

In this article, I would like to show a sample code to generate square thumbnail image by using Minimagick which is a Ruby wrapper for ImageMagic.
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Jan 8, 2017 • 2 min read

Scraping by using CasperJS[JavaScript]

It is a tips that you can use when you want to scrape a page using JavaScript. Since CasperJS can be instaled easily by npm, it is recomended to use in sever side.
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Jan 7, 2017 • 4 min read

PostgreSQL Tips [Data Size per Table, Reindex, NULLSLAST]

While using PosgreSQL, this is my note which I learned.


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Jan 3, 2017 • 3 min read

ESLint with React.js & ES6+

ESLint is a static lint tool for JavaScript. Before running your code, the tool find obvious bug. In addtion, it helps to unify your code styles such as how to use parentheses and spaces, etc. In this article, I will explain the ESLint configuration for checking React.js written with ES6+.
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Jan 2, 2017 • 5 min read

Wonderful react-bootstrap! We can use Bootstrap as a component!

React-Bootstrap is a library that can handle Bootstrap as a component of React.js. By using this you can build code with a sense of combining React.js components, not Bootstrap’s CSS. Also, as a whole your code becomes clearer, maintenance costs are suppressed as well!
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Jan 1, 2017 • 3 min read

CSS-Modules with React.js

I would like to introduce react-css-modules with React.js. CSS-Module is a concept for seamless mapping of class names to CSS modules inside of React components.
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Dec 30, 2016 • 8 min read

First Step for React.js on Rails

This article describes how to start React on Rails.  Read →

Dec 29, 2016 • 5 min read

React.js Tips & Useful Component Set for beginner

This article describes React.js tips & useful componet for beginner.  Read →

Dec 28, 2016 • 5 min read

React.js on ES6+ Tips for beginner

This article describes React.js on ES6+ tips for beginner.  Read →

Dec 14, 2016 • 2 min read

RSpec tesiting for rake task [Ruby on Rails]

I summarized the procedure of the RSpec test in this article. Since I summarized it as simple as possible, please read through those who are trying to create Rake task for the first time.  Read →