phansch

NOTE: This is outdated. Check the comments below for more up-to-date forks of this gist.

Improved YARD CHEATSHEET http://yardoc.org

forked from https://gist.github.com/chetan/1827484 which is from early 2012 and contains outdated information.

• Official Getting Started Guide
• Official Tags documentation
• Type naming examples

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

shirts

Manage Emulators
android avd

Run Emulator
emulator -avd <AVD_Name>

Install apk onto emulator
adb -e install <path to apk>

mhubig

FROM alpine:latest

RUN apk add --update php python py-pip mysql-client \
    && pip install awscli \
    && rm -rf /var/cache/apk/*

RUN touch crontab.tmp \
    && echo '* */6 * * * /usr/bin/php /var/www/partkeepr/app/console partkeepr:cron:run' > crontab.tmp \
    && echo '0 2   * * * /usr/bin/sql_backup' >> crontab.tmp \
    && crontab crontab.tmp \

ericelliott

Essential JavaScript Links

I no longer mantain this list. There are lots of other very comprehensive JavaScript link lists out there. Please see those, instead (Google "awesome JavaScript" for a start).

JunichiIto

This list is based on aliases_spec.rb.

You can see also Module: RSpec::Matchers API.

matcher	aliased to	description
a_truthy_value	be_truthy	a truthy value
a_falsey_value	be_falsey	a falsey value
be_falsy	be_falsey	be falsy
a_falsy_value	be_falsey	a falsy value

blaix

On Tue, Mar 12, 2013 at 1:26 PM, Martin Fowler martinfowlercom@gmail.com wrote:

The term pops up in some different places, so it's hard to know what it means without some context. In PoEAA I use the pattern Service Layer to represent a domain-oriented layer of behaviors that provide an API for the domain layer. This may or may not sit on top of a Domain Model. In DDD Eric Evans uses the term Service Object to refer to objects that represent processes (as opposed to Entities and Values). DDD Service Objects are often useful to factor out behavior that would otherwise bloat Entities, it's also a useful step to patterns like Strategy and Command.

It sounds like the DDD sense is the sense I'm encountering most often. I really need to read that book.

The conceptual problem I run into in a lot of codebases is that rather than representing a process, the "service objects" represent "a thing that does the process". Which sounds like a nitpicky difference, but it seems to have a real impact on how people us

JGallardo

print "enter loan amount: "
loan = gets.chomp.to_i
print "Enter length of time in months: "
time = gets.chomp.to_i
print "Enter interest rate: "
rate = gets.chomp.to_f/100

i = (1+rate/12)**(12/12)-1
annuity = (1-(1/(1+i))**time)/i 

mattratleph

vimdiff cheat sheet

##git mergetool

In the middle file (future merged file), you can navigate between conflicts with ]c and [c.

Choose which version you want to keep with :diffget //2 or :diffget //3 (the //2 and //3 are unique identifiers for the target/master copy and the merge/branch copy file names).

:diffupdate (to remove leftover spacing issues)

:only (once you’re done reviewing all conflicts, this shows only the middle/merged file)

steveclarke

Capybara

save_and_open_page

Matchers

have_button(locator)