drucoder

Файл настройки: ~/.vimrc
Можно редактировать файлы через сеть, например
:e <scp|ftp|ftps>://user@host/path/to/the/file.txt
:Ex или :e ./ - файловый менеджер

== Основы ==
hjkl                      перемещение в разные стороны
i                         режим вставки
I                         добавление в начало строки
a                         режим добавления

calaway

Git Branch Merging Best Practices

1. After you've selected a feature to work on, create a branch in your local repo to build it in.
   • $ git checkout -b calaway/short_description_of_feature
2. Implement the requested feature, make sure all tests are passing, and commit all changes in the new branch.
3. Checkout the master branch locally.
   • $ git checkout master
4. Pull down the master branch from GitHub to get the most up to date changes from others. If you practice git workflow as described here you should never have a merge conflict at this step.
   • $ git pull origin master
5. Make sure all tests are passing on master and then checkout your new branch.

• $ git checkout calaway/short_description_of_feature

randallreedjr

Working with git remotes on Heroku

Generally, you will add a git remote for your Heroku app during the Heroku app creation process, i.e. heroku create. However, if you are working on an existing app and want to add git remotes to enable manual deploys, the following commands may be useful.

Adding a new remote

Add a remote for your Staging app and deploy

Note that on Heroku, you must always use master as the destination branch on the remote. If you want to deploy a different branch, you can use the syntax local_branch:destination_branch seen below (in this example, we push the local staging branch to the master branch on heroku.

$ git remote add staging https://git.heroku.com/staging-app.git

psayre23

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