bastman

Docker - How to cleanup (unused) resources

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

delete volumes

// 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

matheus-santos

// SocketIO cheat sheet
// SocketIO is a library that makes websockets communications easier.
// Page: http://socket.io/
// ref: http://stackoverflow.com/a/10099325

// send to current request socket client
socket.emit('message', "this is a test");

// sending to all clients, include sender
io.sockets.emit('message', "this is a test");

KrisSiegel

var querySelectorAllWithEq = function (selector) {
    if (selector === undefined) {
        return null;
    }
    var queue = [];
    var process = function (input) {
        if (input.indexOf(":eq(") === -1) {
            return undefined;
        }

Divi

#!/usr/bin/env bash

# PARAMETERS
# ----------
# PHP
# ---
PHP_TIMEZONE="UTC"
PHP_DIRECTORY="/etc/php5ts"

danharper

// this is the background code...

// listen for our browerAction to be clicked
chrome.browserAction.onClicked.addListener(function (tab) {
	// for the current tab, inject the "inject.js" file & execute it
	chrome.tabs.executeScript(tab.ib, {
		file: 'inject.js'
	});
});

xeoncross

/**
 * IE 5.5+, Firefox, Opera, Chrome, Safari XHR object
 * 
 * @param string url
 * @param object callback
 * @param mixed data
 * @param null x
 */
function ajax(url, callback, data, x) {
	try {

ToddG

Summary

I'm trying to figure out how to use rebar to:

• create erlang project
• add a dependency on an erlang module from github
• start the app via the erl console
• create a release and start the app from the release (via the generated scripts)

rgreenjr

-- show running queries (pre 9.2)
SELECT procpid, age(clock_timestamp(), query_start), usename, current_query 
FROM pg_stat_activity 
WHERE current_query != '<IDLE>' AND current_query NOT ILIKE '%pg_stat_activity%' 
ORDER BY query_start desc;

-- show running queries (9.2)
SELECT pid, age(clock_timestamp(), query_start), usename, query 
FROM pg_stat_activity 
WHERE query != '<IDLE>' AND query NOT ILIKE '%pg_stat_activity%' 

mxriverlynn

var socket = io.connect("http://myserver");

socket.on("*", function(){
  // listen to any and all events that are emitted from the
  // socket.io back-end server, and handle them here.

  // is this possible? how can i do this?
});