daveshah

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

daveshah

There's a couple of ways, one way is

• Get search results
  • Do SPC / and type in your search string
  • or SPC x S and search string - where x is your scope indicator (p for project, d for directory, etc..)
• Once you have the occurences you want, hit C-c C-e inside the helm buffer to put all your match occurences and puts them into a special buffer called the edit buffer or something like that
• in that buffer you can use any commands you'd normally use on a buffer
• the C-c C-c to commit your changes.

daveshah

S.O.L.I.D. Elixir

S.O.L.I.D. - for roughly a decade, many have learned and sought to apply these principles in the context of
Object Oriented Programming. As Functional languages like Elixir become more mainstream, one might wonder if these concepts are still applicable and, if so, seek out concrete examples that demonstrate their merit in this new functional world. Come prepared to tour each of the S.O.L.I.D. design principles and to examine how S.O.L.I.D. principles not only apply to Object Oriented Programming, but also to Functional Programming in Elixir.

daveshah

require 'rails_helper'


describe Rack::MyMiddleware do
  let(:app) { proc { [200, {}, ['Hello Dave']] } }
  let(:stack) { described_class.new(app) }
  let(:request) { Rack::MockRequest.new(stack) }

  context 'A POST request' do
    #NOTE TIL = this is how I post all the things

daveshah

# 1) Created User and Run models first (generated)
# 2) Created the UserRun model (generated) then removed all but Ecto.Schema
# 3) Corrected the UserRun model so that it looked like this:
defmodule Gatherto.UserRun do
  use Ecto.Schema
  
  schema "users_runs" do
    belongs_to :user, Gatherto.User  #this was VERY important! Before I had field :user_id, :binary_id
    belongs_to :run, Gatherto.Run    #this was VERY important! Before I had field :run_id, :binary_id
    timestamps()

daveshah

find . -name "*.bak" -type f -delete

daveshah

# ag <https://github.com/ggreer/the_silver_searcher>
# usage: ag-replace.sh [search] [replace]
# caveats: will choke if either arguments contain a forward slash
# notes: will back up changed files to *.bak files

ag -l $1 | xargs perl -pi.bak -e "s/$1/$2/g"

# or if you prefer sed's regex syntax:

ag -l $1 | xargs sed -ri.bak -e "s/$1/$2/g"

daveshah

Go buy a Mac ;)

daveshah

iex(11)> foo_int = "123foobar"
"123foobar"

iex(12)> String.to_integer(foo_int)
** (ArgumentError) argument error
    :erlang.binary_to_integer("123foobar")
    
iex(12)> Integer.parse(foo_int)
{123, "foobar"}

daveshah

Assertion with == failed
  code: Words.count("co-operative") == expected
  lhs:  %{"co" => 1, "operative" => 1}
  rhs:  %{"co-operative" => 1}

Assertion with == failed
  code: Words.count("co-operative") == %{"co-operative" => 1}
  lhs:  %{"co" => 1, "operative" => 1}
  rhs:  %{"co-operative" => 1}