[Mongoose] Implementation Strategy for Adding Default Field Definitions Midway

Adding a default to a Mongoose Schema later fills in existing data with that default too — here's how to handle it.

[Windows] When You Accidentally Delete Programs, Use 'System Restore' to Revert

How I recovered a Windows machine with System Restore after uninstalling too many programs.

[MongoDB] Command to Remove Fields

How to remove fields in MongoDB with $unset, with samples for single-document and bulk updates.

[Windows] Fake Java Update Sites and Solutions

How I cleaned up a Windows machine hit by fake Java update sites, using browser cache clearing and IObit Uninstaller.

Development Project That Kills All Motivation

Reflections on a development project with no market research or revenue estimates that killed engineer motivation.

Gave a Slack Introduction Talk at 'My Secret Tips Championship Tournament! #1'

Slides from an in-house lightning talk introducing Slack for work efficiency.

[Git] How to Undo When You Accidentally Execute git push origin master

Safely undo an accidental `git push origin master` with `git revert` instead of force push.

[Mongoose] Use mongoose.Types.ObjectId.isValid for ObjectId Validation

Validate ObjectId strings in Mongoose with mongoose.Types.ObjectId.isValid.

Implementing 'Practical Lessons in Peer Code Review'

Takeaways from Practical Lessons in Peer Code Review, including budgeting about 25% of development time for review.

HTTP(s) Monitoring Service Pingdom

Setting up external HTTP(S) uptime monitoring for a personal site with Pingdom's free plan.

Should I Recommend a Friend to Use WIX Paid Plan for Website Creation?

Comparing WIX, Jimdo, Weebly, and WordPress.com for a non-engineer who wants to run their own site.

I Was Thinking 'There's an UNEXPECTED INCONSISTENCY; RUN fsck MANUALLY Error!' When I Received an Email Titled '[Sakura VPS] Report on Failure'

A Sakura VPS host hardware failure caused fsck errors — I opted to restore from their backup.

The Debt of Being Unable to Decide

A short note on the debt that piles up when a startup can't decide who owns each call.

[Atom] List of Default Built-in Packages

Checking Atom's 84 default built-in packages with `apm list` and pruning them from apm stars.

[Mongoose] Check if Specific Fields Have Changed with isDirectModified, isModified, modifiedPaths

How Mongoose's isDirectModified, isModified, and modifiedPaths differ when detecting field changes on a document.

take-a-screenshot.org Explaining How to Take Screenshots is Convenient for Customer Support!

Sharing take-a-screenshot.org, a per-device screenshot guide handy for customer support.

After Reading 'Building Trust with Team Members: Recommendation for Regular One-on-One Meetings,' I Tried 1on1 and It Was Great!

Tried a 30-minute 1on1 after reading Cookpad's article, and it opened up topics we normally never discuss.

[MongoDB] Failed global initialization: BadValue Invalid or no user locale set. Please ensure LANG and/or LC_* environment variables are set correctly.

Work around the mongo shell BadValue locale error by running `export LC_ALL=C`.

Tokyo Node Academy 15th Session Participation Report #tng15

Notes from Tokyo Node Academy 15th session (#tng15) — io.js, Extensible Web, and more.

[Gmail] Delivery Status Notification (Delay)

Gmail's Delivery Status Notification (Delay) turned out to be an over-quota storage issue on the forwarding destination.

[Atom] Managing Packages with apm (Atom Package Manager)

Managing Atom packages by starring and bulk-installing them with apm's star commands.

[Node.js] log-timestamp: Adding Timestamps to console.log and console.error Output

Introducing log-timestamp, a Node.js module that prepends timestamps to console.log and console.error output.

Internet Explorer has stopped working. A problem caused the program to stop working correctly. The program will be closed and Windows will notify you if a solution is available.

Fixing Internet Explorer crashes on a bank transfer system by clearing the browser cache.

[CircleCI] About Ruby Version Specification

Pin Ruby down to the patch level in .ruby-version so CircleCI does not fail on unsupported patch levels.

[MongoDB] Connecting to Another DB from mongo shell to Execute Queries

Open a second connection with connect() and reach another MongoDB server from the same shell.

[Node.js] Error: bind EADDRINUSE

Recovering from Node.js bind EADDRINUSE by finding the port-hogging process with netstat and killing it.

[JavaScript] jsdom memory leak

Fixed an out of memory error in a jsdom scraper by calling window.close().

What Should You Do to Pay Back Technical Debt?

Notes on hsbt-san's take that paying back technical debt comes down to hiring the right person and giving them authority.

[MongoDB] How to Check Execution Time of aggregate

Measuring MongoDB aggregate execution time by wrapping mongo --eval with the shell's time command.

[Mac] Steps for Screen Recording with QuickTime Player

How to record your Mac screen with QuickTime Player including microphone audio.

[Android] SSH Client App JuiceSSH

Installed JuiceSSH on a Nexus5 for on-call SSH access, importing the private key via email.

[Google] How to Set Up 2-Step Verification Google Authenticator on Multiple Devices

How to set up Google Authenticator across multiple devices, with links to 2SV settings for related services.

[Homebrew] brew missing, imagemagick: xz

Resolving a brew doctor warning by installing the missing xz dependency required by ImageMagick.

Support Details is extremely useful for handling bug reports from customer support

Support Details (supportdetails.com) is handy for collecting a user's OS, browser, and environment info during bug triage.

[Zsh] oh-my-zsh Installation and Configuration Method

Installing oh-my-zsh, enabling plugins and custom configs, and dodging the PATH pitfall.

Catching Up After a Long Vacation

How I tried to catch up on a week's worth of changes using release notes, Slack, and GitHub after a long vacation.

[Mongoose] TypeError: Cannot read property 'options' of undefined

An object-typed value in a type: ObjectId field triggers the options undefined TypeError — here's why.

[Nagios] Changing check_load Settings for Load Average Monitoring

Tightening Nagios's check_load intervals so load average spikes get flagged sooner.

[MongoDB] Display Count in mongo shell Can Be Set with DBQuery.shellBatchSize

Change the mongo shell page size with DBQuery.shellBatchSize to skip typing "it" over and over.

GUI Client for MongoDB

Installing Robomongo as a GUI client for MongoDB in a development environment.

[MongoDB] Query to Get Documents Where a Specific Text Field Has x or More Characters

Use $ne with $where to fetch MongoDB documents whose text field length meets a minimum.

[RVM] Empty path passed to certificates update, functions stack: requirements_osx_update_openssl_cert_run …

Fixing an RVM Ruby 2.1.3 install error by reinstalling with the --disable-binary flag.

[Redis] Command to get all values of keys containing a specific string

A one-liner combining redis-cli KEYS and MGET via xargs to fetch all values for keys matching a prefix.

[JavaScript] Method for merge recursive

A short note on using lodash.merge for recursive object merges in JavaScript.

Use a different email address than the one used in Zendesk as the 'from' for emails sent to Zendesk

Sending to Zendesk from one of your own support addresses turns it into a suspended ticket — use a different from address instead.

[MongoDB] MongoError: Runner error: Overflow sort stage buffered data usage of x bytes exceeds internal limit of 33554432 bytes

Adding an index on the sort field resolved the Overflow sort stage error in Express + Mongoose.

nanapi Study Session vol4 【nanapi x Hatena】Points that can be stolen from Hatena and nanapi's development flow

Notes from nanapi Study vol4 reports: Wercker, Teatro, CasperJS, and nanapi's deployment flow.

Create an environment where you can create what you want to create

A short reflection prompted by Yasutaka Nakata's article on shaping an environment to build what you want to build.

[Git] Command to return to pre-merge state when conflict occurs during merge

The one-liner `git reset --hard ORIG_HEAD` to return to the pre-merge state after a conflict.

How to configure Nagios to send notifications to Slack channel

Posting Nagios alerts to a Slack channel via Incoming WebHooks and a small shell script, avoiding the Integration limit.