Bruce Harris bruceharris

An interactive version of a Reingold–Tilford tree. Click on the nodes to expand or collapse.

This example has moved to .

http://bl.ocks.org/bruceharris/8423028

This simple line chart is constructed from a TSV file storing the closing value of AAPL stock over the last few years. The chart employs conventional margins and a number of D3 features:

d3.tsv - load and parse data
d3.time.format - parse dates
d3.time.scale - x-position encoding
d3.scale.linear - y-position encoding
d3.extent - compute domains
d3.svg.axis - display axes

Meteor namespacing, specifically package scope variables, don't seem to work as described in the namespacing section of the docs.

From what I can tell, when the var keyword is omitted, actual globals are created. (I'm running 0.6.5)

To run this:

$ meteor create globalcheck

then copy these files into globalcheck (overwriting the default files)

JavaScript's Prototype System

When I ask interview candidates to explain what prototypes mean in JavaScript, the response is often something like this

Here's my attempt to explain it succinctly.

I think it's important to draw the distinction between 2 related concepts: the prototype property of functions, and the prototype of an object

The prototype property of functions

JavaScript II - Objects, Arrays and Booleans

Content and target audience

JavaScript II - Objects, Arrays, and Booleans

Laying the foundation for object oriented programing in JavaScript.

	package net.bruceharris.test.inheritance;

	import static org.junit.Assert.assertEquals;

	import org.junit.Assert;
	import org.junit.Test;

	public class InheritanceTest {

	private Child c = new Child();

	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
	"http://www.w3.org/TR/html4/loose.dtd">
	<html>
	<head>
	<title>Jasmine Spec Runner</title>

	<link rel="shortcut icon" type="image/png" href="lib/jasmine-1.2.0/jasmine_favicon.png">
	<link rel="stylesheet" type="text/css" href="lib/jasmine-1.2.0/jasmine.css">
	<script type="text/javascript" src="lib/jasmine-1.2.0/jasmine.js"></script>
	<script type="text/javascript" src="lib/jasmine-1.2.0/jasmine-html.js"></script>

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">

	<title>CodePen · A Pen by bruceharris</title>
	<!--
	Copyright (c) 2012 Bruce Harris, http://codepen.io/bruceharris

	Permission is hereby granted, free of charge, to any person obtaining

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset="UTF-8">

	<title>CodePen · A Pen by bruceharris</title>
	<!--
	Copyright (c) 2012 Bruce Harris, http://codepen.io/bruceharris

	Permission is hereby granted, free of charge, to any person obtaining