[Ubuntu] How to handle messages saying packages can be updated or updates are security updates

How to handle the 'packages can be updated' message on Ubuntu with apt-get update and upgrade.

Points to check when configuration file specified in Serposcope's Dserposcope.conf is not loaded

Serposcope ignored `-Dserposcope.conf` because I had the `java` command options in the wrong order.

[MySQL] How to configure my.cnf (Mac + Homebrew Edition)

How to configure my.cnf for MySQL installed with Homebrew on Mac.

Change MySQL character encoding to UTF8

Steps to switch MySQL 5.7's character encoding to UTF8 via my.cnf.

Free VPN Service Tunnello Recommended

How to install and use Tunnello, a Chrome extension VPN service with 1GB free per month.

[Mocha] Execution order of before, beforeEach, after, afterEach

The execution order of Mocha's before, beforeEach, afterEach, and after hooks with sample code.

Vue.js Tokyo v-meetup="#3" Participation Report #vuejs_meetup3

A personal summary of the sessions I attended at Vue.js Tokyo v-meetup #3.

CAPTCHA Frequency with Search Ranking Checker Tool Serposcope

A case study of tuning Serposcope to keep CAPTCHA occurrences under 10 across about 6000 keywords.

[MongoDB] Query to Get Documents with nth Decimal Places and Update with mth Decimal Place Values

Use $where and `toFixed(2)` to round prices with 3+ decimal places down to two.

How to use Windows on Mac for free (IE, Edge only)

Set up IE and Edge testing on a Mac for free using VirtualBox and ievms.

Inside Frontend #1 Participation Report #insideFE

Notes and impressions from the sessions I attended at the Inside Frontend #1 conference.

[Mongoose] Using Only createdAt with timestamp options

How to keep only createdAt in Mongoose by implementing it yourself in pre save/update hooks.

How to Build a Proxy Server with Squid3

Steps for building an HTTP proxy server on Ubuntu using Squid 3.x.

Price Comparison of CAPTCHA Breaking Services Compatible with Search Ranking Checker Tool Serposcope

A price comparison of four CAPTCHA breaking services that work with Serposcope, with a monthly cost estimate.

Practicing the Pomodoro Technique with the Toggl App

Turning on Pomodoro timer settings in the Toggl app to run the technique in a familiar tool.

I Tried Using Free Proxies with Search Ranking Checker Tool Serposcope but It Didn't Work

I hooked Serposcope up to free proxies, but CAPTCHAs made it completely unusable.

Steps to Install Search Ranking Checker Tool Serposcope on Ubuntu

Install the Serposcope 2.6.0 deb package on Ubuntu and start the service to expose the rank checker.

How to Install Java 8 on Ubuntu 16

Add the webupd8team PPA and install Oracle Java 8 on Ubuntu 16.04 for a serposcope host.

Free WordPress Cache Plugin Comparison

Comparing free WordPress cache plugins from an Nginx + PHP-FPM operator's perspective.

Installing iftop on Mac

After brew install iftop, the binary wasn't on PATH, so I symlinked it into /usr/local/bin/.

Options I Use with ssh-keygen When Creating SSH Public and Private Keys

The ssh-keygen options (-t, -b, -f, -C, -l) I regularly use to create SSH key pairs.

[JavaScript] How to Get the Number of Decimal Places

A getDecimalPlace helper that uses toString().split('.') to count decimal places in JavaScript.

[JavaScript] Remove All Elements with Specified ID or Class Name

Pure JavaScript functions to remove DOM elements by id or class name, no jQuery required.

[Mongoose] You Can Skip Validation with model.save({ validateBeforeSave: false })

From Mongoose 4.2.0 you can skip validation with save({ validateBeforeSave: false }).

[Nginx] Configuration to Redirect HTTP to HTTPS & HTTP Strict Transport Security (HSTS) Support

Nginx configs for a 301 HTTP→HTTPS redirect and the HSTS header, plus how to submit to the HSTS Preload List.

[Mac] Fixing 'Error: /usr/local must be writable!' with brew update

Notes on recovering from brew update's /usr/local must be writable! error via chown and brew prune.

[Git] Command to Bulk Delete Merged Remote Branches

Bulk deleting merged remote Git branches with git branch --merged and xargs, then pruning stale refs.

[WordPress] How to Support Accelerated Mobile Pages Using the AMP Plugin

Adding AMP support to WordPress and fixing disallowed tags flagged by AMP Test.

[MongoDB] How to Check the Storage Engine

Check the MongoDB storage engine via `db.serverStatus().storageEngine`.

Looking Back on 2016

Reflecting on 2016 across business improvement, returning to engineering, and starting remote work from Kumamoto.

[JavaScript] Regular Expression and Snippet to Replace Line Break Characters \r\n \r \n with Spaces

A JavaScript regex snippet that replaces \r\n, \r, and \n line breaks with a single space.

Got Library not loaded: libreadline error when running psql, so I ran brew upgrade postgresql

How I fixed a psql libreadline error with brew upgrade postgresql and pg_upgrade.

Promise reference articles summary [JavaScript/ECMAScript6]

A personal reading list of reference articles for learning ES2015 Promises in JavaScript and Node.js.

WordPress files and database automatic backup and upload to Google Drive

Automating WordPress file and MySQL backups to Google Drive with the gdrive CLI and cron.

[Mongoose][timekeeper] TypeError: Undefined type `FakeDate` at `fieldName`

Calling new mongoose.Schema inside timekeeper.freeze throws a FakeDate TypeError — cause and fix.

[MongoDB] Getting year-month-day string from ISODate

Extracting YYYY-MM-DD from a MongoDB ISODate with toISOString().substring(0, 10).

Reusing variables between different versions of Moment.js and Moment Timezone resulted in spectacular bugs

Mixing Moment.js and Moment Timezone versions broke date handling due to how the _d property is treated.

Article summary explaining Tech Lead roles clearly

A reading list of the articles and podcasts I used to understand what a Tech Lead actually does.

git log -S can search for code deleted in the past

How to use `git log -S` to find commits that added or removed a specific piece of code.

[JavaScript] Use onload event to execute processing after iframe loading completes

Use the iframe onload event to run JavaScript after loading, with a jQuery example to disable inner links.

Won ANTOR-JAPAN Award at 'Think Regional Revitalization in Tokyo! RESAS API Hackathon'

First-hackathon report: team Zen OS won the ANTOR-JAPAN Award at the RESAS API Hackathon.

[Node.js] Installed socketio instead of socket.io and got 'Cannot find module 'socket.io'' error

Mixing up the socketio and socket.io npm packages led to a Cannot find module error — here's the fix.

moment-timezone old version caused date processing bugs during daylight saving time switch

An old moment-timezone bugged out at the DST switch — upgrading fixed it, and here's why tz updates matter.

[Heroku] Deploy only subdirectories

Deploying only the api subdirectory of a monorepo to Heroku with git subtree push.

[Atom] How to fix getaddrinfo ENOTFOUND atom.io atom.io:443 error

Fixing `apm starred`'s `getaddrinfo ENOTFOUND atom.io` error by running `apm login`.

Using icon font Ionicons with Ionic Framework

How to find and use Ionicons, the icon font that comes with Ionic Framework, via the icon and ion-* classes.

[Atom.io] Format JavaScript source code with atom-beautify

Formatting JavaScript in Atom with the atom-beautify package.

How to overwrite and save files with sed command

Two ways to overwrite a file in place with the sed command — the -i option and a redirect + cp pattern.

How to set animated GIFs to loop playback

Using gifsicle's --loopcount and --batch options to configure loop playback for animated GIFs.

Five cultural differences between Japanese and US companies you should know

A colleague's Tech Talk Tokyo #4 slides on five cultural differences between Japanese and US companies.