Posts tagged with "JavaScript"

What's the difference between JavaScript engines and JavaScript runtimes?

March 26, 2024 - Runtimes and engines are often incorrectly referred to as the same thing.

Introducing humanfs (formerly fsx): A modern filesystem API for JavaScript

January 10, 2024 - Filesystem APIs in JavaScript runtimes haven't been great for a long time. This is my attempt to make a better one.

JavaScript WTF: Why does every() return true for empty arrays?

September 8, 2023 - How can a condition be satisified when there aren't any values to test?

Disabling paste in textboxes is not a security feature

July 3, 2023 - This common, and annoying, pattern on many government and financial websites causes more problems than it solves.

Automating tweets with Twitter API v2

April 18, 2023 - As Twitter disables many apps that use the v1.1 API, it's time to learn how to automate tweets using v2.

Creating a Jekyll-style blog post URL in Astro

March 14, 2023 - It's not obvious from the examples, but you can emulate Jekyll-style blog post URLs including years and months in Astro.

Creating a Jekyll-style blog post year archive in Astro

February 14, 2023 - While not included in their default blog template, it is straightforward to create a year-based archive for your posts in Astro.

The lazy-loading property pattern in JavaScript

April 20, 2021 - You can defer computationally-expensive operations until needed using an accessor property.

Introducing Env: a better way to read environment variables in JavaScript

February 16, 2021 - Reading environment variables in JavaScript is fraught with peril. Env makes it better.

Creating a JavaScript promise from scratch, Part 7: Unhandled rejection tracking

January 19, 2021 - Rejected promises without rejection handlers can hide important errors, which is why both Node.js and browsers have a way of tracking them.

Creating a JavaScript promise from scratch, Part 6: Promise.all() and Promise.allSettled()

December 16, 2020 - Promise.all() and Promise.allSettled() work on any number of promises to allow you to know when all of the promises have resolved

Creating a JavaScript promise from scratch, Part 5: Promise.race() and Promise.any()

November 24, 2020 - Promise.race() and Promise.any() work on any number of promises to allow you to know when certain ones have resolved

Creating a JavaScript promise from scratch, Part 4: Promise.resolve() and Promise.reject()

October 13, 2020 - Promises created with Promise.resolve() and Promise.reject() go through a different process than when created with a constructor.

Creating a JavaScript promise from scratch, Part 3: then(), catch(), and finally()

October 6, 2020 - Promise handlers are where all of the asynchronous actions happens and it helps to look at the internals to understand how they work.

Creating a JavaScript promise from scratch, Part 2: Resolving to a promise

September 29, 2020 - Resolving promises to non-thenables is easy; resolving promises to other promises requires a bit of work.

Creating a JavaScript promise from scratch, Part 1: Constructor

September 22, 2020 - Sometimes it's easier to understand complex concepts like promises by creating them yourself.

Computer science in JavaScript: Circular Doubly-linked lists

March 5, 2019 - Expanding on a doubly linked list by adding circular traversal.

Computer science in JavaScript: Doubly linked lists

February 5, 2019 - Implementing a doubly linked list in JavaScript.

Why I've stopped exporting defaults from my JavaScript modules

January 15, 2019 - After years of fighting with default exports, I've changed my ways.

Computer science in JavaScript: Linked list

January 8, 2019 - Building the classic computer science data structure in JavaScript.

Extracting command line arguments from Node.js using destructuring

October 2, 2018 - Using array destructuring to easily handle command line arguments.

Detecting new posts with Jekyll and Netlify

September 4, 2018 - Use Node.js to tell when a new Jekyll blog post is published.

The inception of ESLint

February 27, 2018 - The story of how one bug at work spawned the pluggable linter.

The ECMAScript 2016 change you probably don't know

October 18, 2016 - How the JavaScript strict mode directive changed in 2016.

ES6 module loading: More complicated than you think

April 5, 2016 - Module JavaScript can be indistinguishable from non-module JavaScript.

Mimicking npm script in Node.js

March 8, 2016 - Run command line tools with specific environment settings.

Reflections on ESLint's success

February 9, 2016 - The little linter that could has grown up before my eyes.

React and the economics of dynamic web interfaces

January 26, 2016

Hidden performance implications of Object.defineProperty()

November 17, 2015

My ECMAScript 7 wishlist

June 3, 2014

Creating type-safe properties with ECMAScript 6 proxies

April 29, 2014

Creating defensive objects with ES6 proxies

April 22, 2014

Announcing Understanding ECMAScript 6

March 26, 2014

Accessing Google Spreadsheets from Node.js

March 4, 2014

Now shipping: Principles of Object-Oriented JavaScript

February 25, 2014

Maintainable Node.js JavaScript: Avoid process.exit()

February 4, 2014

Private instance members with weakmaps in JavaScript

January 21, 2014

Node.js and the new web front-end

October 7, 2013

Understanding ECMAScript 6 arrow functions

September 10, 2013

Introducing ESLint

July 16, 2013

Internet Explorer 11: “Don't call me IE”

July 2, 2013

eval() isn't evil, just misunderstood

June 25, 2013

On the politics, cargo-culting, and maintainability of JavaScript

May 28, 2013

Getting the URL of an iframe's parent

April 16, 2013

Making an accessible dialog box

February 12, 2013

You can't create a button

January 29, 2013

Now available: Principles of Object-Oriented Programming in JavaScript (beta)

December 18, 2012

Are your mixins ECMAScript 5 compatible?

December 11, 2012

Computer science in JavaScript: Quicksort

November 27, 2012

JavaScript APIs you've never heard of (and some you have)

November 13, 2012

ECMAScript 6 collections, Part 3: WeakMaps

November 6, 2012

Does JavaScript need classes?

October 16, 2012 - ECMAScript 6 adds classes to JavaScript. Do we really neeed them?

ECMAScript 6 collections, Part 2: Maps

October 9, 2012

Thoughts on TypeScript

October 4, 2012

Computer science in JavaScript: Merge sort

October 2, 2012

ECMAScript 6 collections, Part 1: Sets

September 25, 2012

Computer science in JavaScript: Insertion sort

September 17, 2012

The innovations of Internet Explorer

August 22, 2012

A critical review of ECMAScript 6 quasi-literals

August 1, 2012

Thoughts on ECMAScript 6 and new syntax

July 24, 2012

Working with files in JavaScript, Part 5: Blobs

June 5, 2012

Working with files in JavaScript, Part 4: Object URLs

May 31, 2012

Now available: Maintainable JavaScript

May 29, 2012

Working with files in JavaScript, Part 3: Progress events and errors

May 22, 2012

Working with files in JavaScript, Part 2: FileReader

May 15, 2012

Working with files in JavaScript, Part 1: The Basics

May 8, 2012

The performance of localStorage revisited

April 25, 2012

It's time to start using JavaScript strict mode

March 13, 2012

In defense of localStorage

March 7, 2012

CSS media queries in JavaScript, Part 2

January 19, 2012

Now available: Professional JavaScript, 3rd Edition

January 9, 2012

Proposal: Scripting detection using CSS media queries

January 4, 2012

CSS media queries in JavaScript, Part 1

January 3, 2012

Introducing Props2Js

December 20, 2011

Timer resolution in browsers

December 14, 2011

Custom types (classes) using object literals in JavaScript

November 4, 2011

Improving Rhino CLI utility performance

October 25, 2011

So you want to write JavaScript for a living? [repost]

October 20, 2011

Simple, maintainable templating with JavaScript

October 11, 2011

When web standards fail us

October 3, 2011

Script yielding with setImmediate

September 19, 2011

Experimenting with ECMAScript 6 proxies

September 15, 2011

Introduction to the Page Visibility API

August 9, 2011

Book review: Eloquent JavaScript

June 19, 2011

Better JavaScript animations with requestAnimationFrame

May 3, 2011

Using HTML5 semantic elements today

March 22, 2011

Separating JavaScript download and execution

February 14, 2011

On UA sniffing, browser detection, and Alex's post

February 8, 2011

Thoughts on script loaders

December 21, 2010

Mysterious arguments object assignments

November 2, 2010

Wanted: Dynamic execution contexts in JavaScript

October 26, 2010

Introduction to Server-Sent Events

October 19, 2010

Why is getElementsByTagName() faster than querySelectorAll()?

September 28, 2010

Learning from XAuth: Cross-domain localStorage

September 7, 2010

What is a non-blocking script?

August 10, 2010

Determining if an object property exists

July 27, 2010

Cross-domain Ajax with Cross-Origin Resource Sharing

May 25, 2010

Towards more secure client-side data storage

April 13, 2010

iPad web development tips

April 6, 2010

Custom events in JavaScript

March 9, 2010

Maintainable JavaScript: Don't modify objects you don't own

March 2, 2010

Answering Soshnikov's quiz

February 23, 2010

My JavaScript quiz – answers

February 18, 2010

My JavaScript quiz

February 16, 2010

Announcing High Performance JavaScript

February 9, 2010

How Internet Explorer 8 document mode affects JavaScript

February 2, 2010

Answering Baranovskiy's JavaScript quiz

January 26, 2010

Internet Explorer 8 document and browser modes

January 19, 2010

Feature detection is not browser detection

December 29, 2009

Writing maintainable code

December 15, 2009

Computer science in JavaScript: Base64 encoding

December 8, 2009

What makes a good browser API?

November 24, 2009

The curious case of JavaScript unit testing

November 17, 2009

YUI 3 IdleTimer now available on YUI Gallery

October 28, 2009

JavaScript sleuthing: Buggy native JSON

October 20, 2009

Introducing Combiner, a JavaScript/CSS concatenation tool

September 22, 2009

Iframes, onload, and document.domain

September 15, 2009

Computer science in JavaScript: Selection sort

September 8, 2009

Computer science in JavaScript: Binary search

September 1, 2009

Web workers: errors and debugging

August 25, 2009

Experimenting with web workers

August 18, 2009

Timed array processing in JavaScript

August 11, 2009

Computer science in JavaScript: Credit card number validation

August 4, 2009

The best way to load external JavaScript

July 28, 2009

Introduction to sessionStorage

July 21, 2009

Firefox 3.5/Firebug XMLHttpRequest and readystatechange bug

July 9, 2009

JavaScript minification/compression and performance

July 7, 2009

Event delegation in JavaScript

June 30, 2009

Loading JavaScript without blocking

June 23, 2009

Computer science in JavaScript: Binary search tree, Part 2

June 16, 2009

Computer science in JavaScript: Binary search tree, Part 1

June 9, 2009

Speed up your JavaScript: The talk

June 5, 2009

Detecting if the user is idle with JavaScript and YUI 3

June 2, 2009

Computer science in JavaScript: Bubble sort

May 26, 2009

JavaScript stack overflow error

May 19, 2009

Cookies and security

May 12, 2009

JavaScript error handling anti-pattern

April 28, 2009

Computer science in JavaScript: Doubly-linked lists

April 21, 2009

Computer science in JavaScript: Linked list

April 13, 2009

XPath in JavaScript, Part 3

April 4, 2009

Announcing Even Faster Web Sites

March 28, 2009

XPath in JavaScript, Part 2

March 24, 2009

XPath in JavaScript, Part 1

March 17, 2009

The art of throwing JavaScript errors, Part 2

March 10, 2009

First review of Professional JavaScript, 2nd Edition

March 7, 2009

The art of throwing JavaScript errors

March 3, 2009

Mozilla JavaScript Extension: __count__

February 24, 2009

Book review: Learning Ext JS

February 22, 2009

Mozilla JavaScript extension: __noSuchMethod__

February 17, 2009

Book review: Learning Dojo

February 15, 2009

JavaScript variable performance

February 10, 2009

Speed up your JavaScript, Part 4

February 3, 2009

Speed up your JavaScript, Part 3

January 27, 2009

Speed up your JavaScript, Part 2

January 20, 2009

Free excerpt from Professional JavaScript, 2nd Edition

January 18, 2009

The YUI 3 revolution

January 16, 2009

Speed up your JavaScript, Part 1

January 13, 2009

What determines that a script is long-running?

January 5, 2009

Now available: Professional JavaScript, Second Edition

December 31, 2008

FireUnit extension for YUI Test

December 19, 2008

JavaScript block-level variables

December 4, 2008

Speaking at SF JavaScript Meetup

November 22, 2008

Professional JavaScript, 2nd Edition available for pre-order

November 11, 2008

The YUI Test world tour

November 10, 2008

What happened to Firebug?

November 9, 2008

ECMAScript 3.1 static object methods prototype

November 9, 2008

Inside IE 8′s mutable DOM prototypes

September 7, 2008

Chrome tames wild dialogs and popups

September 6, 2008

Naked JavaScript objects

July 10, 2008

Mentioned in Microsoft whitepaper

July 5, 2008

Cross-domain XHR removed from Firefox 3

April 27, 2008

Compress context menu item for Windows XP

April 23, 2008

Get the JavaScript global

April 20, 2008

The story of Professional JavaScript

April 6, 2008

Falling in love with the IE8 JavaScript debugger

March 22, 2008

The dreaded Operation Aborted error

March 17, 2008

IE8 goodies and baddies

March 9, 2008

Does Safari's clipboardData actually work?

March 3, 2008

Book Review: Pro JavaScript Design Patterns

February 24, 2008

YUI 2.5.0: YUI Test reaches GA and more

February 20, 2008

More Opera weirdness

February 16, 2008

The mysterious Wii remote JavaScript API

February 12, 2008

Can text nodes receive events?

February 9, 2008

Getting element dimensions: A follow up

February 4, 2008

Getting element dimensions

February 3, 2008

Introducing JSONLib

January 15, 2008

getElementsByClassName() weirdness

January 13, 2008

Don't forget navigator.platform

December 17, 2007

IE: COM reers its ugly head

December 13, 2007

YUI 2.4.0 has been released

December 4, 2007

The throttle() function

November 30, 2007

Browsers too leniant with regular expressions

November 28, 2007

Announcing the Yahoo! Juku

November 28, 2007

JavaScript variable scoping trickery

November 19, 2007

ECMAScript 4: I hate it

October 31, 2007

The way JavaScript is handled: A call to action

October 20, 2007

Good object-oriented design in JavaScript

October 4, 2007

Keep JSON out of JavaScript

September 13, 2007

Inconsistent array literals

September 9, 2007

Why I don't like the Google Web Toolkit

September 7, 2007

Are local variables faster? Part 2

August 27, 2007

Are local variables faster?

August 26, 2007

What makes a good front end engineer?

August 15, 2007

My first YUI release

July 31, 2007

Professional JavaScript, 2nd Edition feedback wanted

July 15, 2007

Some of my writings

July 9, 2007

ScriptDoc

July 2, 2007

IE6 fix frees you of memory leaks

June 28, 2007

JavaScript variable names you shouldn't use

June 3, 2007

Maintainable JavaScript talk

May 25, 2007

An open letter to Opera

May 15, 2007

Safari lies

May 8, 2007

.NET to be more like JavaScript

March 13, 2007

A note on JavaScript performance

February 28, 2007

getElementsMatching()

February 22, 2007

What's the deal with CSS query engines?

February 12, 2007

Event order of blur and change

February 6, 2007

Feature detection != browser detection

January 15, 2007

Interesting JavaScript string capability

December 26, 2006

The JavaScript download gotcha

December 20, 2006

Browser detection versus feature detection

November 16, 2006

Minimizing closure usage

November 15, 2006

Adobe open sources Flash JavaScript engine

November 9, 2006

The absorb() method

November 8, 2006

The absorb() function

November 4, 2006

The case against Hungarian notation in JavaScript

November 1, 2006

Update to zXml

October 29, 2006

Debunking object()

October 14, 2006

Small zXml Update

September 23, 2006

Closures considered harmful

September 7, 2006

Don't allow overriden methods

September 6, 2006

Mainstream Ajax

July 10, 2006

Back Button/Onload Mess

June 27, 2006

Use Null Comparisons Sparingly

June 20, 2006

Fun With Null And Undefined

June 13, 2006

FireBug 0.4

June 10, 2006

Global Variables Are Evil

June 5, 2006

Eureka Suite – The Next Generation

May 31, 2006

Google Web Toolkit

May 17, 2006

Design Patterns in JavaScript

April 25, 2006

Eureka v0.2 – Now With Leak Detection!

April 22, 2006

CSS + JavaScript = Evil

April 5, 2006

Google Maps API – No XHTML Support

March 27, 2006

Yahoo! Connection Manager

March 24, 2006

DOM Tree Update

March 17, 2006

Alternate Ajax Techniques, Part 2

March 17, 2006

XMLHttp Requests For Ajax

March 14, 2006

Adobe Jumps On The Ajax Bandwagon

March 13, 2006

Firebug

March 5, 2006

IE OnBeforeUnload Fun

March 1, 2006

Firefox OnBeforeUnload Fun!

March 1, 2006

Introducing Eureka v0.1

February 26, 2006

Ajax Shelflife

February 22, 2006

Respect JavaScript

February 19, 2006

Alternate Ajax Techniques

February 10, 2006

Upload From a Link

January 30, 2006

Firefox 1.5 Keypress Event Changes

January 18, 2006

JavaScript 1.2 Must Die

January 10, 2006

Canvas in IE

January 5, 2006

Updated: zDragDrop 1.1

October 30, 2005

Ajax Using a Style Sheet?

September 30, 2005

zArray Update

August 19, 2005

Does JavaScript suck?

August 9, 2005

E4X Lives

August 1, 2005

Array extensions

July 31, 2005

Google AJAXSLT

July 7, 2005

Developing with Google Maps

July 1, 2005

Google Maps API

June 30, 2005

The Atlas Project

June 29, 2005

Mozilla's new Array methods

June 22, 2005

Cajun Is Coming

June 21, 2005

Brendan Eich's Latest

June 14, 2005

Java or JavaScript?

June 5, 2005

JavaScript's Future: Cajun

May 31, 2005

Last Autosuggest Article

May 30, 2005

Where's the JavaScript?

May 29, 2005

Working With JSON

May 4, 2005

zColor 0.1

April 25, 2005

Ten Good Practices

April 19, 2005

Autosuggest Some More!

April 8, 2005

Firefox JavaScript Flaw

April 5, 2005

Internet Explorer innerHTML Quirk

March 30, 2005

Creating An Autosuggest Textbox

March 21, 2005

Opera 8 To Support User JavaScript

March 20, 2005

View DOM Source Bookmarklet

March 17, 2005

Google Maps

February 8, 2005

JavaScript Game Programming

February 3, 2005

del.icio.us/tag/javascript

January 20, 2005

Open a New Browser Tab With JavaScript

January 19, 2005

Kind Words

January 14, 2005

JavaScript Compilers

December 29, 2004

Fixing Duff's Device

December 20, 2004

zInherit 1.0 and zEvents 1.1

December 6, 2004

zEvents 1.0

November 5, 2004

JSLint

October 6, 2004