（最近英語でエントリを書くことにしているのですが、この記事は特性上日本語で書いています） はじめに 今年度ぐらいから（この）hatanablogやtwitterのtweetを英語で書くことを意識的に多くしている。もしくは英語と日本語の両方で書いたりする。先に断っ…

(please find the Japanese translation after the English text) Please let's me go easy because I'm a newbie about JavaScript :) In order to transform my data, I looked for the function which is equivalent to PHP's array_column() in JavaScri…

(please find the Japanese translation after the English text) overview This is the 3rd article about password hash function on php. I’m deeply in love with password hash function :) . In this article, I’d like to explain the Argon2id which…

(please find the Japanese translation after the English text) Last Friday, I visited the NTT history center of technologies with my family. The telephone switchboard, the first generation pager and mobile phone, ISDN service, and so on, al…