This fork of JamieMason's implementation changes the key parameter to be an array of keys instead of just a single key. This makes it possible to group by multiple properties instead of just one.
const groupBy = keys => array =>
array.reduce((objectsByKeyValue, obj) => {
const value = keys.map(key => obj[key]).join('-');
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
| #!/bin/bash | |
| dn="dc=example,dc=com" | |
| ldap_server='192.168.1.1' | |
| group_name='group' | |
| available_uidNumber=`expr $(ldapsearch -x -b ${dn} -h ${ldap_server} '(objectClass=posixAccount)' uidNumber | grep "uidNumber: " | sed "s|uidNumber: ||" | uniq | sort -n | tail -n 1) + 1 ` | |
| echo ${available_uidNumber} | |
| available_gidNumber=`expr $(ldapsearch -x -b ${dn} -h ${ldap_server} '(objectClass=posixGroup)' gidNumber | grep "gidNumber: " | sed "s|gidNumber: ||" | uniq | sort -n | tail -n 1) + 1 ` | |
| echo ${available_gidNumber} |
| Below are the Big O performance of common functions of different Java Collections. | |
| List | Add | Remove | Get | Contains | Next | Data Structure | |
| ---------------------|------|--------|------|----------|------|--------------- | |
| ArrayList | O(1) | O(n) | O(1) | O(n) | O(1) | Array | |
| LinkedList | O(1) | O(1) | O(n) | O(n) | O(1) | Linked List | |
| CopyOnWriteArrayList | O(n) | O(n) | O(1) | O(n) | O(1) | Array |
| describe( "Mock examples:", function() { | |
| var version = jasmine.version_ ? jasmine.version_.major : parseInt( jasmine.version, 10 ); | |
| var spyName = function( spy ) { | |
| if( version === 1 ) { | |
| return spy.identity; | |
| } else { | |
| return spy.and.identity() | |
| } |
| // This factory is only evaluated once, and authHttp is memorized. That is, | |
| // future requests to authHttp service return the same instance of authHttp | |
| servicesModule.factory('authHttp', function($http, Authentication) { | |
| var authHttp = {}; | |
| // Append the right header to the request | |
| var extendHeaders = function(config) { | |
| config.headers = config.headers || {}; | |
| config.headers['Authorization'] = Authentication.getTokenType() + | |
| ' ' + Authentication.getAccessToken(); | |
| }; |
| // create file: | |
| sudo vim /usr/share/applications/intellij.desktop | |
| // add the following | |
| [Desktop Entry] | |
| Version=13.0 | |
| Type=Application | |
| Terminal=false | |
| Icon[en_US]=/home/rob/.intellij-13/bin/idea.png | |
| Name[en_US]=IntelliJ |
Press minus + shift + s and return to chop/fold long lines!
| // Source: https://groups.google.com/forum/#!topic/angular/hVrkvaHGOfc | |
| // jsFiddle: http://jsfiddle.net/pkozlowski_opensource/PxdSP/14/ | |
| // author: Pawel Kozlowski | |
| var myApp = angular.module('myApp', []); | |
| //service style, probably the simplest one | |
| myApp.service('helloWorldFromService', function() { | |
| this.sayHello = function() { | |
| return "Hello, World!" |
| MongoTemplate mongo = ...; | |
| List<Converter> converters = new ArrayList<Converter>(); | |
| converters.add(new Converter<DBObject, Participant>() { | |
| public Participant convert(DBObject s) { | |
| throw new UnsupportedOperationException("Not supported yet 1."); | |
| } | |
| }); | |
| converters.add(new Converter<Participant, DBObject>() { |
