[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.

How to fix: Refused to display https://www.youtube.com/watch?v=xxx in a frame because it set X-Frame-Options to SAMEORIGIN.

Putting a YouTube watch URL straight into an iframe src triggers an X-Frame-Options error — swap it for the embed URL.

[MongoDB] How to rename/change database names

Rename a MongoDB database by copyDatabase to the new name, then dropDatabase the old one.

Data matching latitude/longitude with Japanese addresses can be obtained free from MLIT's 'Location Reference Information Download Service'

Japan's MLIT offers free lat/lng to address data via its Location Reference Information Download Service.

Story of registering for Sakura VPS's 2-week free trial period to set up with Ansible

Signed up for Sakura VPS's 2-week free trial to prepare for Ansible-based server setup.

When 'Updating RPMS on system' appears on console during Sakura VPS first boot, wait patiently

If Sakura VPS first boot is stuck on `Updating RPMS on system`, wait about 20 minutes.

Use the -c option to exclude invalid characters that iconv cannot convert

Use iconv's -c option to skip invalid characters and finish a UTF-8 to Shift JIS conversion.

[Google Spreadsheet] To convert numbers to Plain Text, use the TEXT(A1,"@") function

When VLOOKUP fails unexpectedly, TEXT(A1,"@") to convert the key to plain text solved it.

mesh.js - extending MongoDB shell to use moment.js, underscore.js and other useful libraries

Extending the MongoDB shell with mesh.js so moment.js and underscore.js are available, with a date-arithmetic example.

Won't mentoring systems produce good results unless the person recognizes 'there's a need for a mentoring system'?

A note on why mentoring systems tend to work only when the mentee themselves recognizes the need for one.

[Shell Script] Getting formatted dates for yesterday, today, and tomorrow

Using `date -d '1 days ago'` and friends to get yesterday, today, and tomorrow formatted as `YYYY-MM-DD`.

[SEO] Should I use half-width spaces or  ?

A short Q&A memo on whether to use half-width spaces or   from an SEO perspective.

Even for IT companies, phone calls are still the emergency communication method

Even at an IT company, phone calls are still the emergency channel — configuring iPhone Do Not Disturb around it.

Notation for mention posts like @channel from Slack bot

Use the <!channel> notation to make @channel mentions notify when posting from a Slack bot.

[SEO] Improving mobile-friendliness apparently affects increasing domain authority

Mobile-friendliness feeds domain authority — sharing my Mobile-Friendly Test results for this site.

[Mac] How to fix slow Excel performance

Fixing slow Excel for Mac by cleaning up font duplicates, preference plists, and Microsoft caches.

Can Google Search Console switch search results by co.jp or .com? #SEO

A short Q&A on whether Google Search Console can switch results between co.jp and .com.

Report from 'UZABASE Meetup#3 ~Improving Team Productivity~' #UzabaseMeetup

A participant report from UZABASE Meetup#3 on improving team productivity.

After upgrading to Mac OS X El Capitan, hub command stopped working, but 'brew upgrade hub' fixed it

The hub command broke with ArgumentError after upgrading to El Capitan, and 'brew upgrade hub' fixed it.

When copying and pasting MongoDB query results with tab-delimited strings, tab characters may disappear, so file output is best

Tab characters can disappear when pasting Mongo query output from Terminal — writing to a file and importing fixes it.

Report from 'Shibuya EC Meetup vol.2' #pbtech

A participation report from Pepabo's 'Shibuya EC Meetup vol.2' — LT sessions, a theater performance, and social hour.

[Ansible] Using the -k, --ask-pass option with ansible-playbook command causes errors for servers that can SSH without password

Passing ansible-playbook -k, --ask-pass to a key-authenticated SSH host triggers an authentication error — dropping the flag fixes it.

Lesson learned: Check router's DHCP allocation limit when you get 'Cannot connect to internet due to self-assigned IP address' error

The lesson: when Wi-Fi hits a self-assigned IP error, check the router's DHCP allocation limit — mine was capped at 32.

[Windows10] L2TP/IPSec VPN client connection setup

Reference notes for L2TP/IPSec VPN client setup on Windows 10, including a Mac VPN Server tweak.