fxn

Ruby: The future of frozen string literals

What is a literal?

In programming languages, literals are textual representations of values in the source code. This is a syntactical concept.

Some examples:

7 # integer literal

jonatas

require 'bundler/inline'

gemfile do
  source 'https://rubygems.org'
  gem 'timescaledb'
  gem 'bulk_insert'
  gem 'pry'
end

require 'timescaledb'

shaundon

import SwiftUI

struct ContentView: View {
  @State private var preferences = PreferencesModel()
  
  var body: some View {
    VStack {
      HStack {
        Text("Value: ")
        Text(preferences.theNumber.formatted()).bold()

shaundon

import SwiftUI

struct ContentView: View {
  @Environment(PreferencesModel.self) var preferences
 
  var body: some View {
    Text("Salary: \(preferences.salary)")
  }
}

mudge

Rails.application.configure do  
  # Add Cloudflare's IPs to the trusted proxy list so they are ignored when
  # determining the true client IP.
  #
  # See https://www.cloudflare.com/ips-v4/ and https://www.cloudflare.com/ips-v6/
  config.action_dispatch.trusted_proxies = ActionDispatch::RemoteIp::TRUSTED_PROXIES + %w[
    173.245.48.0/20
    103.21.244.0/22
    103.22.200.0/22
    103.31.4.0/22

jnunemaker

# Set HONEYBADGER_FOO_BAR_JOB=asdf where asdf is the check in value Honeybadger gives you.
class ApplicationJob < ActiveJob::Base
  after_perform { |job| job.honeybadger_checkin }
  
  # Check in with Honeybadger to let us know that the job was performed 
  # if there is an identifier configured for the job.
  def honeybadger_checkin
    identifier = honeybadger_checkin_identifier
    return unless identifier.present?

technicalpickles

require "benchmark/ips"
require "benchmark/memory"

require 'bundler'
class Bundler::Settings
  def original(name)
    key = key_for(name)
    value = configs.values.map {|config| config[key] }.compact.first

    converted_value(value, name)

joemasilotti

import Foundation

enum Environment: String {
    case development, staging, production
}

extension Environment {
    static var current: Environment {
        if isAppStore {
            return .production

jjb

For years, people have been using jemalloc with ruby. There were various benchmarks and discussions. Legend had it that Jemalloc 5 didn't work as well as Jemalloc 3.

Then, one day, hope appeared on the horizon. @wjordan offered a config for Jemalloc 5.

Ubuntu/Debian

FROM ruby:3.1.2-bullseye
RUN apt-get update ; \

noelrappin

class Module
  def sigilize(method_name)
    define_method("#{method_name}?") do |*args, **kwargs|
      !!method_name(*args, **kwargs)
    end
    
    define_method("#{method_name}!") do |*args, **kwargs|
      result = method_name(*args, **kwargs)
      raise StandardError unless result
      result