Thomascountz

$ rails -v

Rails 6.0.3.2

$ ruby -v

ruby 2.7.1p83 (2020-03-31 revision a0c7c23c9c)

Thomascountz

require 'benchmark/ips'

Benchmark.ips do |benchmark|
  benchmark.config(time: 5, warmup: 2)


  benchmark.report("keyword-args") do
    def foo(a: nil, b: nil, c: nil, d: nil, e: 1)
      bar(a: a, b: b, c: c, d: d, e: e)
    end

Thomascountz

require 'benchmark/ips'

Benchmark.ips do |benchmark|
  benchmark.config(time: 5, warmup: 2)


  benchmark.report("keyword-args") do
    def foo(a: nil, b: nil, c: nil, d: nil, e: nil)
      bar(a: a, b: b, c: c, d: d, e: e)
    end

Thomascountz

require 'benchmark/ips'

Benchmark.ips do |benchmark|
  benchmark.config(time: 5, warmup: 2)


  benchmark.report("keyword-args") do
    def foo(a: nil, b: nil, c: nil, d: nil, e: nil)
      bar(a: a, b: b, c: c, d: d, e: e)
    end

Thomascountz

" ------------------------------------------------------------------
"                            general config 
" ------------------------------------------------------------------
set number		            " show line numbers
let mapleader = "\\"	    " assign \ as leader
set showmatch               " show matching brackets.
set ignorecase              " case insensitive matching
set hlsearch                " highlight search results
set tabstop=2               " number of columns occupied by a tab character
set softtabstop=2           " see multiple spaces as tabstops so <BS> does the right thing

Thomascountz

require 'matrix'

# Input: an array of the n coefficients [a_n, a_n-1,..., a_1] of 
# a univariate polynomial p of degree n ([a_n]x^n + [a_n-1]x^n-1 + ... + a_1)
#
# Output: an array of all n roots of p
#
# Exploits the fact that the eigenvalues of the companion matrix of the
# monic equivalent of p are the roots of p
#

Thomascountz

duonotes.fandom.com

Danish

---

Basics 1

Thomascountz

let stopCode = "901308"
fetch(`https://bustime.mta.info/api/siri/stop-monitoring.json?key=REDACTED&version=2&MonitoringRef=${stopCode}`)
  .then(function (response) {
    return response.json();
  }).then(function (json) {
    console.log(json.Siri.ServiceDelivery.StopMonitoringDelivery[0].MonitoredStopVisit.map(visit => {
      return visit.MonitoredVehicleJourney.MonitoredCall.ArrivalProximityText
    }))
  });
//=> [ "1.2 miles away", "2.3 miles away", "3.1 miles away" ]

Thomascountz

Which do you prefer?

Here is a ruby User class with #first_name, #last_name, and #full_name methods, as well as a constructor.

#/lib/user.rb
class User
  
  attr_reader :first_name, :last_name
  

Thomascountz

#!/usr/bin/env ruby

Prediction = Struct.new(:sat_name, :local_start, :max_elevation, :local_end, keyword_init: true)

NOAA15 = "25338"
NOAA18 = "28654"
NOAA19 = "33591"

require "HTTParty"
require "json"