taka011239

var http = require('http');
server = http.createServer(function (req, res) {
  res.writeHead(200, {'Content-Type': 'text/plain'});
  res.end('Hello World\n');
  server.close();
});
server.listen(8080, 0, function () {
  console.log('Server running at http://localhost:8080/');
});

taka011239

from PIL import Image, ImageDraw
my_data = [line.split('\t') for line in file('decision_tree_example.txt')]

class decisionnode:
    def __init__(self, col = -1, value = None, results = None, tb = None, fb = None):
        self.col = col
        self.value = value
        self.results = results
        self.tb = tb
        self.fb = fb

taka011239

plus :: Int -> Int -> Int
plus m 0 = m
plus m n
  | n > 0  = plus m (n - 1) + 1
  | n < 0  = plus m (n + 1) - 1

minus :: Int -> Int -> Int
minus m 0 = m
minus m n
  | n > 0 = minus m (n - 1) - 1

taka011239

package main

import "fmt"

type EvalFunc func(interface{}) (interface{}, interface{})

func BuildLazyEvaluator(evalFunc EvalFunc, initState interface{}) func() interface{} {
	retValChan := make(chan interface{})

	loopFunc := func() {

taka011239

package main

import (
	"fmt"
	"sync"
)

func main() {
	ch := make(chan int)
	var wg sync.WaitGroup

taka011239

package closure

type Request struct {
	Url string
}

func Closure1(reqs []*Request) {
	for _, req := range reqs {
		go func(req *Request) {
			req.Url = "http://example.org"

taka011239

buffered channelとunbuffered channelの挙動の違い

channelにbufferがあるかないかで、channelを使った同期の挙動が異なる。

詳しくは、公式のThe Go Memory Modelを参照。

Rule

以下のルールに従う。 bufferの有無で、送信と受信の優先順位が変わるので注意。

taka011239

Go温泉 #2 + #GoCart

Go 温泉 + GoCart をしに行きましょう！

注意

GoCart の方は人数制限が 6 人なので、 温泉参加者が全員走れるとは限りません。 ご注意下さい。

日程

taka011239

acpi | grep -oE \[0-9\]+%

taka011239

var http = require('http');

http.createServer(function(req, res) {
  if(req.method === 'POST') {
    res.end('POST');
    console.log('POST');
  } else if (req.method === 'GET') {
    res.end('GET');
    console.log('GET');
  } else {