decorate your javascript
February 28, 2018Javascript decorators are a form of metaprogramming: they add functionality to classes and properties. Unlike the GoF pattern, where…
22 posts tagged with "javascript"
browser-sync is the easiest webserver EVER
October 23, 2016Browser-sync is the fastest way to spin up a local web server. It will even open your default browser with the entry point you specify, and…
Service workers
October 15, 2016A service worker is a script that sits between a web page and the network, acting as a proxy for network requests: if the network is…
The EventEmitter Pattern and the Event Loop -- a timeline
October 14, 2016The EventEmitter pattern is a derivative of the Observer pattern: an object can notify a set of observers when a change in its state occurs…
callbacks and the event loop
October 12, 2016When I started writing javascript in earnest a couple of years ago, I was stuck in a very procedural way of thinking — all of my functions…
javascript object property meta properties
November 07, 2015JavaScript Objects are complex types, and even defined properties have a control panel of their own. You can view the content of the control…
gaining closure through modules
September 06, 2014If you have more than one javascript running on a page, you have likely experienced the hell of trying to debug a problem caused by naming…
javascript getters and setters
August 09, 2014Getters and setters make sense in java, and I just learned that there is an equivalent pattern in javascript: The and key words are…
constructors and prototypes
August 07, 2014Object-oriented programming (OOP) can be thought of as describing the properties and behaviour of a noun in a blueprint, which is used to…
'in' operator avoids false falsies
August 05, 2014I have encountered more than my share of javascript errors because I have made assumptions about the object I am working with, such as…
stringify cyclic structures with censors
July 23, 2014Troubleshooting a d3 data visualization sometimes requires visual inspection of the underlying JSON data structure. You can convert linear…
javascript dates
March 01, 2014Javascript Date objects have zero indexed months but not dates. Wat? Resources Javascript strftime
string conversion in javascript
February 27, 2014Almost every day, javascript blows my mind. Today I discovered that you can convert a string to a number simply by prepending a +: Awesome.
for score
February 11, 2014The statement can function as a quick and semantic iterator for looping over object properties. In your console, try Awesome Resources…
augmented objects
February 09, 2014Because it bears repeating: javascript and ruby have many features in common, including the ability to add functionality to existing objects…
augmented types
February 08, 2014Javascript and Ruby have many features in common, including the ability to add functionality to existing objects. Ruby monkeypatching Ruby…
global abatement
February 07, 2014or, What the heck is global abatement? tldr: Global variables are code smells. Declaring variables inside an application-level function…
a number is a double is a float
February 03, 2014JavaScript has a single number type — a 64-bit floating point number. Since there is no separate integer type, 1 and 1.0 are the same value…
Meatier Apps With Meteor
October 21, 2013Meteor is a framework that allows you to write web applications using only javascript. All the work is done on the client-side. Meteor…
Hoisting with JavaScript
June 26, 2013I am really enjoying Test-Driven Development by Christian Johansen I picked up this little gem this morning as I was learning about…
Javascript has spies
June 25, 2013Spies vs Mocks vs Stubs? We are covering testing frameworks at PCS this week, particularly Jasmine and Sinon. Jasmine has a similar…
jQuery objects vs strings
June 19, 2013Object blocker!! My pair was stuck for the longest time on the following code snip: We expected out output to include three elements — the…