[Mongoose] Setting validation runValidators: true in update() and findOneAndUpdate()

Turn on validators for Mongoose update() and findOneAndUpdate() with the runValidators: true option.

Amazon SQS Message Limits per Queue

A quick summary of Amazon SQS's per-queue inflight message limits for standard and FIFO queues.

Are iPhone Earphones the Best for Remote Work?!

Why I ended up going back to Apple's EarPods with 3.5 mm Headphone Plug for remote work.

[MongoDB] How to Fix "$err" : "Can't canonicalize query: BadValue cannot compare to undefined", "code" : 17287

Reproducing and guarding against the MongoDB code 17287 undefined-comparison error.

Wise Words from 'Don't Read the Air' (『空気を読んではいけない』の金言)

Wise words from Shinya Aoki's 'Don't Read the Air,' viewed through an engineer's lens.

How to Fix Japanese and Chinese Character Display Issues in wkhtmltopdf

Getting Japanese and Chinese to render in wkhtmltopdf via IPAex Font and Noto Sans CJK.

[Nginx] How to Exclude Specific URLs from Basic Authentication

Using satisfy any and allow all to exempt specific URLs or static assets from Nginx Basic auth.

Migrating Domain Registrar from DNSimple to Amazon Route 53

Steps for migrating a domain registrar from DNSimple to Amazon Route 53.

Number Abbreviations: No. and # (Number Sign)

A quick look at abbreviations for Number (No., #, №) and how to use them concisely.

instagram-scraper: A Python Tool for Downloading Instagram Images and Videos

How to install and use the Python CLI tool instagram-scraper to download Instagram images and videos.

Manually Renewing Let's Encrypt SSL [CentOS + Nginx Edition]

Manually renewing a Let's Encrypt SSL certificate on CentOS + Nginx with certbot-auto.

How to Install Python 3 on macOS High Sierra

Run brew install python3 on macOS High Sierra to get Python 3.7, then verify python3 and pip3.

I Think Not Being Able to Buy Additional Coupons During IIJmio OFF-Time Communication Restrictions is a Lost Opportunity

IIJmio's off-time throttling makes even buying more data impossible — a real-world lost-opportunity story.

Setting Google Calendar to Display Time for Each TimeZone

Enable Show world clock in Google Calendar to keep multiple time zones visible in the sidebar.

Remote Work May "Potentially Degrade Social Skills"

A favorite illustration from The Oatmeal on how remote work may quietly degrade your social skills.

github-changes Can Auto-Generate CHANGELOG.md from Commit Messages

How to use github-changes to auto-generate CHANGELOG.md from commit messages, with a real-world PR example.

When Mining Ether on Ethereum Private Network, eth.blockNumber Stays at 0 Because DAG Generation Isn't Complete

eth.blockNumber stayed at 0 on an Ethereum private net because DAG generation wasn't done yet.

Installing geth (go-ethereum) and Connecting to Private Network [MacOS Edition]

Install geth on macOS via Homebrew and connect to an Ethereum private network.

[MongoDB] $pull and $pullAll for Removing Specific Elements from Array Fields

$pull and $pullAll examples for removing single or multiple elements from a MongoDB Array field.

[YAMAHA RTX1210] How to Configure DHCP Reserved Addresses

Configuring a DHCP reserved address on the YAMAHA RTX1210 VPN router, with the commands I ran from the maintenance console.

[macOS] dyld: Library not loaded: /usr/local/lib/QtWebKit.framework/Versions/4/QtWebKit

Fixing the wkhtmltopdf QtWebKit dyld error on macOS High Sierra with a Homebrew Cask reinstall.

Is Joining a Venture Company a Smart Choice for Individual Career Planning?

A quote from Yoichi Ochiai's Japan Revitalization Strategy on why joining a venture company is a smart career move.

PayPal Does Not Have a Function to Block Specific Accounts

PayPal has no built-in account block list, so I note how to implement one on the merchant side with SetExpressCheckout and GetTransactionDetails APIs.

JavaScript Integer Maximum and Minimum Values Are Defined by Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER

JavaScript exposes its max and min safe integers as Number.MAX_SAFE_INTEGER and Number.MIN_SAFE_INTEGER.

Converting Trello JSON to CSV and Managing with Google Spreadsheets

Export Trello JSON, reshape it with Trelloparse, convert to CSV, then import into Google Spreadsheets.

2018 Recovery Projection for Companies That Raised Hundreds of Millions in 2014

Introducing The Startup's 2018 review of 100 companies that raised big rounds in 2014, and reacting to being on the unrecoverable list.

Stopped MAC Address Filtering Function

Why I turned off office Wi-Fi MAC address filtering after finding the security benefit didn't justify the maintenance cost.

[MongoDB] Search Conditions for Deeply Nested Fields

Why dot notation matches nested MongoDB fields but object-form conditions require an exact match.

docker rmi Command to Delete Docker Images

How to delete Docker Images with docker rmi and reclaim disk space, including dangling image cleanup.

[Node.js] How to Resolve Error: ENFILE: file table overflow, open xxx

Fixing Node.js's ENFILE: file table overflow on macOS by raising the file descriptor limit with launchctl plist files.

Using Google Spreadsheets for Q&A Management Almost Led to Collapse

Migrating cross-company Q&A management from Google Spreadsheets to GitHub Issues after it started to break.

Retirement-Driven Development (RDD)

Retirement-Driven Development: using a teammate's departure to convert tacit knowledge and drop busywork.

SSL/TLS 1.0 Must Be Disabled by June 30, 2018

A short reminder that SSL/TLS 1.0 must be disabled by June 30, 2018.

Setting up SSL with Let's Encrypt [CentOS + Nginx Edition]

Setting up a Let's Encrypt SSL certificate on CentOS + Nginx with certbot-auto.

yum upgrade from CentOS 6.6 to 6.9

Upgrading a server from CentOS 6.6 to 6.9 via yum, with before/after PHP and MySQL versions.

Upgrading Nginx Version with yum ~ CentOS 6

Steps to upgrade Nginx to a newer version with yum on CentOS 6.

How to Write crontab Considering Daylight Saving Time PST/PDT

A crontab notation example that accounts for PST/PDT daylight saving time shifts.

[Fluentd] The Origin of .pos File Name is Position

The Fluentd .pos file gets its name from 'position' — where the tail input last read to.

[MongoDB] How to Resolve Error: getMore: cursor didn't exist on server, possible restart or timeout?

Tuning indexes first, then falling back to the noTimeout cursor option to fix MongoDB's getMore cursor error.

IPO Salaries Typically Range from 4.2 to 5 Million Yen

A look at Mercari's and ZUU's 2018 securities reports and typical IPO-era salaries in Japan.

Checking Elasticsearch Index List

curl one-liners to list Elasticsearch indexes and to delete a specific index by name.

java.io.IOException: Missing root object specification in trailer Error with easy-pdf-merge

Working around a PDFBox bug in the easy-pdf-merge npm package by using a maintained fork.

Changed Evernote Paid Plan from Monthly to Annual Payment

Switched Evernote Plus from monthly to annual billing and saved about 1,220 yen a year.

Engineers/Programmers Will Eventually Become Cheap Labor

Notes on a book's prediction that engineering will commoditize, and what still matters in an AI-driven era.

Purchased a Used Office Chair for Remote Work Base

Picking up a used Okamura Adfit office chair for a remote work base via Office Busters.

301 Redirects After Web Service Closure are Good for SEO

How to handle 301 redirects after shutting down a web service, and why 3-6 months is enough from an SEO perspective.

[JavaScript] fast-safe-stringify is Convenient for Preventing TypeError: Converting circular structure to JSON

Use fast-safe-stringify to serialize circular references as [Circular] and avoid JSON.stringify TypeErrors.

npm Juice Converts CSS in style Tags to Inline Styles - Convenient for HTML Emails

A quick look at npm Juice for inlining CSS in HTML emails, plus an online converter and Gmail notes.

The Best Time for 1on1s is Thursday 3-5 PM

Why the book Yahoo's 1on1 recommends Thursday 3-5 PM as the best slot for 1on1 meetings.

Using MongoDB's findOneAndUpdate with Replica Set Awareness to Reduce Load on Primary DB

Prefixing findOneAndUpdate with a secondaryPreferred findOne to offload reads from the MongoDB primary.