I've been reading SOFT SKILLS ソフトウェア開発者の人生マニュアル(Japanese version) of "Soft Skills". I've made sense implicitly this method before I read the book. I found the chapter "Learning how to learn" that is helpful. So I try to in…

I read this tutorial. There were the confusing terms they are tf.placeholder and tf.Variable. So I checked the difference point. tf.placeholder is called when a session runs a calculation. If once you set a value with tf.placeholder, it ca…

Index Key Prefix Length Limitation on InnoDB I encountered the problem index key prefix length limitation on InnoDB when I migrate a database. The problem was like this: Specified key was too long; max key length is 767 bytes The index key…

I went to builderscon tokyo 2017 from August 3rd to 5th. The eve of the conference I heard some fascinating talks, but I was told not to tell anyone about them, so unfortunately I can't write about them. I think the organizers should keep …

I joined a project, and I begin to develop an application in it. This project has used golang. So I studied it and prepared its developing environment. This article is the what I did to make development environment of GO. Prerequisite Inst…

Ubuntu 16.04 and every other use UTC by default. I want to change to JST. So I search about this on the web, and some site said to use like this. Show list of time zone $ timedatectl list-timezones But I executed this command, and then abo…