koss-lebedev

class ProfileAttributeProvider

  def initialize(model)
    @model = model
  end

  def call
    ProfileField.all.map do |field|
      ActiveDynamic::AttributeDefinition.new(field.name, field.datatype)
    end

koss-lebedev

// @flow

const isStringEmpty = (str?: string) => {
  return str && str.trim() !== ""
}

const first = isStringEmpty(null)
const second = isStringEmpty("")
const third = isStringEmpty("test")

koss-lebedev

// @flow

const isStringEmpty = (str?: string): boolean => {
  return Boolean(str && str.trim() !== "")
}

const first = isStringEmpty(null)
const second = isStringEmpty("")
const third = isStringEmpty("test")

koss-lebedev

// @flow

const SIZE = Object.freeze({
 LARGE: "large",
 MEDIUM: "medium",
 SMALL: "small"
})

type ISize = $Values<typeof SIZE>
  

koss-lebedev

// @flow

export type IProps = {|
  +title: string,
  +description?: string,
|}

class Post extends React.Component<IProps, {}> {

  componentDidMount() {

koss-lebedev

// @flow

const SIZE = Object.freeze({
 LARGE: "large",
 MEDIUM: "medium",
 SMALL: "small"
})

type ISize = $Values<typeof SIZE>

koss-lebedev

// @flow

const SIZE = /*::Object.freeze(*/{
  LARGE: "large",
  MEDIUM: "medium",
  SMALL: "small"
}
}/*::)*/
 
 type ISize = $Values<typeof SIZE> 

koss-lebedev

FILES_WITHOUT_FLOW="$(grep -r --include=\*.js -L "@flow" src)"
FILES_COUNT=$(echo $FILES_WITHOUT_FLOW | wc -w)

if [ $FILES_COUNT -ne 0 ]
then
  echo "Following files are missing @flow annotation:"
  echo $FILES_WITHOUT_FLOW | tr " " "\n"
  exit 1
fi

koss-lebedev

defmodule AdventOfCode.Day01 do
  def solve(part) when part == :one do
    nums = parse_input()
    init = delta(Enum.at(nums, 0), Enum.at(nums, -1))
    
    Enum.chunk_every(nums, 2, 1, :discard)
      |> Enum.reduce(init, fn([a, b], acc) ->
        acc + delta(a, b)
      end)
  end

koss-lebedev

import React from 'react'
import { ThemeProvider } from 'styled-components'
import theme from 'styles/theme'

const App = () => (
  <ThemeProvider theme={theme}>
    /* your components */
  </ThemeProvider>
)