Damian Baar damianbaar

Nix Flake MVP

Goals

To provide Nix repositories with an easy and standard way to reference other Nix repositories.
To allow such references to be queried and updated automatically.
To provide a replacement for nix-channel, NIX_PATH and Hydra

This blog post series has moved here.

You might also be interested in the 2016 version.

The introduction to Reactive Programming you've been missing

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

Collections

each(array)

Underscore example:

_.each([1, 2, 3], function(num) { alert(num); });

The spec has moved to a repo: https://github.com/defunctzombie/package-browser-field-spec to facilitate collaboration.

	// pre-render d3 charts at server side
	var d3 = require('d3')
	, jsdom = require('jsdom')
	, fs = require('fs')
	, htmlStub = '<html><head></head><body><div id="dataviz-container"></div><script src="js/d3.v3.min.js"></script></body></html>'

	jsdom.env({
	features : { QuerySelector : true }
	, html : htmlStub
	, done : function(errors, window) {

	(function() {

	// NOTE: I have intentionally avoided the use of jQuery in
	// the next two functions so as not to obscure any details.

	// Updates the DOM in such a way that layout is constantly
	// computed and thrown away.
	var UpdateThrash = function(data) {
	// Get all the labels
	var spans = document.querySelectorAll('.item .lab');

	[
	{
	"keys": ["ctrl+w"],
	"command": "run_multiple",
	"args": {
	"commands": [
	{"command": "find_under_expand", "args": null, "context": "window"},
	{"command": "show_panel", "args": {"panel": "find"}, "context": "window"}
	]
	}

	/* jsdomtest.js: Build a pie chart using d3.js and send the result to stdout
	* Requires d3.js and d3.layout.js in same directory
	* Requires pie.js from this gist: https://gist.github.com/1509145
	* ex. node jsdomtest.js > pie.svg
	*/

	var jsdom = require('jsdom'),
	scripts = ["file://"+__dirname+"/d3.min.js",
	"file://"+__dirname+"/d3.layout.min.js",
	"file://"+__dirname+"/pie.js"],