Dave Justice meandavejustice

General

Once in a while, you may need to cleanup resources (containers, volumes, images, networks) ...

// see: https://github.com/chadoe/docker-cleanup-volumes

$ docker volume rm $(docker volume ls -qf dangling=true)

$ docker volume ls -qf dangling=true | xargs -r docker volume rm

duplicates = multiple editions

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.

	/*
	by Martin Güther @magegu

	just call it:

	uploadFile(absoluteFilePath, callback);
	*/

	var path = require('path');
	var async = require('async');

	// skipping the imports of Cu and AddonManager here:

	// get an addon pointer
	var addon;
	AddonManager.getAddonByID('@idea-town-addon', function(x) { addon = x; });
	// get the local machine's file path of the addon
	var addonURI = addon.getResourceURI().asciiSpec;
	// ugh, wrap the `file:///` URI in a `jar:///` URI,
	// to get access to the metrics.jsm file inside the zipped idea town xpi.
	// figured this out after a long search in dxr:

	import Icon from 'react-fa'
	import hoverable from 'lib/hocs/hoverable'
	import instyled, { flatKeyed } from 'instyled'
	import cascade from 'cascade'

	export const EditButton = hoverable(
	instyled(
	flatKeyed(
	cascade({
	position: 'absolute',

	function audioContextCheck() {
	if (typeof Services.appShell.hiddenDOMWindow.AudioContext !== 'undefined') {
	return new Services.appShell.hiddenDOMWindow.AudioContext();
	} else if (typeof Services.appShell.hiddenDOMWindow.mozAudioContext !== 'undefined') {
	return new Services.appShell.hiddenDOMWindow.mozAudioContext();
	} else {
	throw new Error('AudioContext not supported');
	}
	}

	;; Very quick hack to use `grasp` for searching js tokens in emacs.
	;; Uses (compile) so when you get search results you can quickly step through them with (next-error) and (previous-error)

	;; to install:
	;; $ npm install -g grasp strip-ansi

	(defun grasp-current-buffer (arg)
	(interactive "MGrasp: ")
	(compile (concat "grasp -H '" arg "' " (buffer-file-name) " \| strip-ansi")))