peter

(require '[schema.core :as s])

(def StrOrKeyword (s/cond-pre s/Str s/Keyword))

(declare Schema)
(declare SchemaValue)
(def SchemaMap {s/Keyword (s/recursive #'SchemaValue)})
(def SchemaArray [(s/recursive #'SchemaValue)])
(def SchemaValue (s/cond-pre s/Str s/Num Nil s/Bool SchemaMap SchemaArray))
(def SchemaType (s/enum "string" "number" "integer" "null" "boolean" "array" "object"))

peter

# NOTE: There must be a better way to do this - help appreciated!

###############################################################
# uploaded_file.rb - utility class
###############################################################

class UploadedFile
  def self.size(file)
    uploaded?(file) ? file.size : nil
  end

peter

################################################################
# config/initializers/handlebars.rb:
################################################################

template_path = File.join(Rails.root.to_s, 'app/views')
helpers = {
  t: lambda do |context, key|
    I18n.t(key)
  end,
  path: lambda do |context, path_name|

peter

Split Large String Benchmark

Results

String split 1 million line string from Heroku log file:

• Elixir 166s
• Clojure 8s
• Ruby 1s
• Python 0.5s

peter

Java:

public Optional<String> getType() {
    return this.types.isEmpty() ?
        Optional.empty() :
        Optional.of(String.join(",", (Iterable)this.types.stream().map(Enum::name).collect(Collectors.toList())));
}

peter

const R = require('ramda')

function pathString(path: string[]): string {
  return path.join('.')
}

function valueType(value: any): string {
  if (value === undefined) {
    return 'undefined'
  } else if (value === null) {

peter

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "lib": [ "es2015", "dom" ],
    "noImplicitAny": true,

peter

{
    "editor.fontSize": 14,
    "editor.tabSize": 2,
    "editor.detectIndentation": false,
    "editor.insertSpaces": true,
    "files.trimTrailingWhitespace": true,
    "files.exclude": {
        "**/.git": true,
        "**/.svn": true,
        "**/.hg": true,

peter

# Running a single minimalistic unit test with Rails 4 and Ruby 2.1.1 is a lot faster
# if you avoid loading Rails:

# Running the test *with* Rails

time ruby -Itest test/models/my_model_test.rb # => real ~ 6s

# Running the test *without* Rails

time ruby -Itest/no_rails test/models/my_model_test.rb # => real ~ 0.6s

peter

S3 Direct JavaScript Upload

TypeScript Code

S3 client module:

import * as AWS from 'aws-sdk'

export const REGION = 'eu-west-1'