jollyjoester

技術的負債は開発者体験を悪化させる https://speakerdeck.com/mtx2s/technical-debt-and-developer-experience

jollyjoester

fun main() {
    val string = "GAKKOU"
    val chars: List<Char> = string.toList()

    val word = chars.permutations().distinct().map { it.toCharArray().concatToString() }.sorted()[99]
    println(word)
}

fun <T> List<T>.permutations(): List<List<T>> {
    if (this.isEmpty()) return listOf(emptyList())

jollyjoester

import Algorithms

let word = ("GAKKOU".permutations().uniqued().map { String($0) }.sorted(by: <)[99])
print(word)

jollyjoester

package main

import (
	"fmt"
	"math/rand"
	"time"
)

func main() {
	rand.Seed(time.Now().UnixNano())	

jollyjoester

import Foundation

// try! Swift NYC 2016
// https://academy.realm.io/posts/tryswift-rob-napier-swift-legacy-functional-programming/

// Sample1: 分解して再構築
struct Person {
    let name: String
    let isValid: Bool = true
}

jollyjoester

(1...100).map {
    switch ($0 % 3, $0 % 5) {
        case (0, 0): return "Fizz Buzz"
        case (0, _): return "Fizz"
        case (_, 0): return "Buzz"
        case (_, _): return "\($0)"
    }
}.forEach { print($0) }

jollyjoester

(1..100).map {
  when {
    it % 15 == 0 -> "fizzbuzz"
    it % 3 == 0 -> "fizz"
    it % 5 == 0 -> "buzz"
    else -> it.toString()
  }
}.forEach { println(it) }

jollyjoester

import UIKit
import PlaygroundSupport

let view = UIView(frame: CGRect(x: 0, y:0, width:320, height:44))
view.backgroundColor = UIColor.black

PlaygroundPage.current.liveView = view

(0...2).forEach {
    let sushi = UILabel(frame: CGRect(x: 320, y: 0, width: 44, height: 44))

jollyjoester

import UIKit
import PlaygroundSupport

let view = UIView(frame: CGRect(x: 0, y:0, width:320, height:44))
view.backgroundColor = UIColor.black

PlaygroundPage.current.liveView = view

(0...2).forEach {
    let sushi = UILabel(frame: CGRect(x:320, y:0, width:44, height:44))

jollyjoester

#! /usr/bin/env python
# -*- coding: utf-8 -*-

import urllib.request
from bs4 import BeautifulSoup

html = urllib.request.urlopen('https://teratail.com/tags/Python')
soup = BeautifulSoup(html, 'lxml')

userRanking_month = soup.find(id='userRanking__month')