(by @andrestaltz)
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.
pipeline { | |
agent { node { label 'swarm-ci' } } | |
environment { | |
TEST_PREFIX = "test-IMAGE" | |
TEST_IMAGE = "${env.TEST_PREFIX}:${env.BUILD_NUMBER}" | |
TEST_CONTAINER = "${env.TEST_PREFIX}-${env.BUILD_NUMBER}" | |
REGISTRY_ADDRESS = "my.registry.address.com" | |
SLACK_CHANNEL = "#deployment-notifications" |
apply from: rootProject.file('gradle/install-git-hooks.gradle') |
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 |
(by @andrestaltz)
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.
Magic words:
psql -U postgres
Some interesting flags (to see all, use -h
or --help
depending on your psql version):
-E
: will describe the underlaying queries of the \
commands (cool for learning!)-l
: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)También puedes usar POST para hacer llamadas a métodos asíncronos, estos son aquellos que deben de realizar alguna operación que va a requerir más de un tiempo razonable de respuesta ( 100ms en el server ). Si usas POST no deberías de agregar variables GET en la URL.