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⇱ Archive - Peter Coles
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June 2025
Ziggy
August 2023
Inverting parse_qs in Python
March 2022
How to reset your Chrome QuotaManager database
February 2022
Browser tab hygiene
“You woke the sleeping guard from his beauty sleep.”
Starting word randomizer for Wordle
January 2022
What is the best Wordle starting word?
Is it greppable?
Grep your way to Synecdoche, NY
December 2021
2021 Posters review
Intersection Observer React Hook
Learning TypeScript and giving up on enums
November 2021
React CanvasComponent and Conway’s Game of Life
The maximum delay for setTimeout
What is Daylight Saving Time?
October 2021
A chess lecture in Washington Square Park
How to prevent a single word after a line break with CSS
Learning how to cook as a software engineer
September 2021
How to escape variables in formulas with the Airtable API
August 2021
How to expose inputs (editable values) in a Google Sheets model
Stripe API: Subscription status explained—incomplete, past_due, unpaid…
July 2021
Don’t FOIL, learn the distributive property instead
Diff a SAFE in Google Docs
A console.log decorator in JavaScript
June 2021
How to programmatically combine & compress PDFs
May 2021
21M.361
Après MIDI
Implementing sleep in JavaScript with Promises
Getting a vaccine under a giant blue whale
Reselect: the redux memoizer we need, but not the redux memoizer we deserve
April 2021
Iron Blogger
Speeding toward a red light in an NYC taxi cab
How to open Figma links faster
March 2021
How to auto-paginate a DynamoDB Scan using an async generator
A shortcut for visualizing knight moves in chess
Are you not entertainer-ed?
Convert JSON to YAML from the command line
February 2021
Use Emacs key bindings in VS Code
I posted a bitcoin wallet on my blog and this is what happened
Making my own iced tea
What problem are you trying to solve?
How many characters does it take to invert a matrix?
January 2021
Making crosswords in Figma
Why I don’t make “fake news” jokes
How to customize the Twenty Twenty-One theme with CSS variables
New year, new web hosting: OpalStack
June 2020
#BlackLivesMatter
April 2019
Harmonica Neck Holders But iPhones
January 2019
Django REST Framework Abstraction Grid
Using async/await in the repl
December 2018
Inlining JSON in a Jekyll Liquid Template
How to use functional setState in React
September 2018
How to draw multi-colored text on an HTML5 canvas
August 2018
Use curly braces inside JavaScript switch statements
Workaround for node-sass hanging in Parcel
June 2018
How to start a local web server to view HTML files
March 2018
Space Creatures
February 2018
Convert .mov to .mp4 with ffmpeg
JavaScript Promises and Errors
December 2017
An abacus in a pile of toys
May 2017
Let the FCC know you care about Net Neutrality
December 2016
How to view Django ORM SQL queries
October 2016
Playing “Baroque Composers” with Arnold
February 2016
Welcome to the Night Files
December 2015
Merry Christmas 2015
November 2015
Append array of jQuery elements
October 2015
How to unarchive an Optimizely Goal
March 2015
Joining Ringly: My NYC startup search
February 2014
Tips for MIT Students: a decade since my freshman year
January 2014
Online Urlparse: decode URLs in the browser
December 2013
Happy Holidaisy 2013
June 2013
Interactive 2-Letter Scrabble Word List
Introducing PicDinner (my first Meteor JS application)
9 ways that Meteor JS raises expectations
May 2013
How to over-engineer a static HTML site with Grunt
Detecting Browser Support for HTML5 Audio Autoplay
February 2013
Time to markdown some markup
January 2013
One-line browser notepad bookmark
How to Configure Photoshop for Web Development
December 2012
Merry Christmas 2012
Bookmarklet: add json to your console
GoFullPage - Full Page Screen Capture Chrome Extension
November 2012
The MrColes shop is open for business!
mkdjangovirtualenv: an easier way to setup a virtualenv for a django project
A menu shortcut for activating a virtualenv
Tips for using Pip + Virtualenv + Virtualenvwrapper
October 2012
Isometric Cicada Principle
Triangle Finder
September 2012
A bookmarklet for jumping between dev and production
August 2012
Failed Projects
June 2012
Urlize plain text in your browser
The Latest Hosted jQuery
May 2012
Presenting my data URI synth
April 2012
Kraftwerk - The Mix | Moma, Night 7 | Monday 04/14/12
See jQuery keyboard events for yourself
Bookmarklet Creator with Script Includer
December 2011
Load content asynchonrously: a simple speedup
Three Wolf Merry Christmas 2011
October 2011
A Decorator for Django Ajax Views
Command-line CSS Unminifier Utility
September 2011
MrColes.com conquers Mount Kilimanjaro
Dictionary Bookmarklet: popup a definition of any word in your browser
August 2011
Earthquake Bookmarklet
How to speedup your slow iPhone 3G… downgrade your OS dum dum!
June 2011
Persistent Placeholders Tutorial: let’s focus
HTML5ify your existing code base
January 2011
Making Images Byte-by-Byte in Javascript
3 decorator examples & other awesome things about Python
The nicest tetris shapes ever
December 2010
Merry Christmas
Canvas Composite Operations Tutorial & Demo
November 2010
Dragging and dropping dragons in HTML5
A Javascript Favicon Creator
October 2010
Exploring the Facebook Graph API Data
How to Query Facebook App User Permissions
September 2010
Use jQuery in Firebug or Chrome Inspector
August 2010
How to use ampersands in HTML: to encode or not to encode?
June 2010
Google Analytics Asynchronous Tracking: How it works
May 2010
Google Chart Tools (and a Pacman Pie Chart)
What percentage of the iPhone market is buying games?
April 2010
Technical look at the “SEOmoz automated link building tool”
I went to Chirp and all I got was this lousy lollypop
Speeding up my site
Google uses site speed in rankings (since exactly when?)
Online CSS Unminifier
March 2010
Scroll Sneak: maintaining scroll position between page loads
February 2010
A simple way to understand mod rewrite
Mod rewrite index.html and www
Result Badge: Hunch Widget
SEO Bookmarklets
January 2010
Tweet with fewer characters and more style
Hunch Theme Song
December 2009
Candy Cane Infused Vodka Hot Chocolate
How tracking scripts affect page loads… can tracking scripts kill my web app?
November 2009
A cross-browser callout box using CSS border triangles. For ie6 too!
Blog Reader Census Widget - Hunch
October 2009
HTTP Cookies: What's the difference between Max-age and Expires?
Pumpkin Carving
Change your screen capture save location - Mac OS X
September 2009
Emacs - OCD about whitespace?
TekServe Recycling Drive
Introducing Low Res Paint
Free Chess + Opening Browser Iphone “App”
New Hunch Widgets & Funny Videos
August 2009
Youtube “Jump to Time” + Rainbow Brite
MrColes.com launches… again!
May 2009
Phished facebook friends may be sharing your info
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