craftgear

const double = x => x * 2;
const over5 = x => x > 5;

const a = [1, 2, 3].map(double).filter(over5);
console.log('********* a', a);

import * as R from 'ramda';

const times2Over5 = R.compose(
  R.tap(console.log),

craftgear

{
  "data": [
      {
        "id": 1,
        "title": "Reactコンポーネントを作れるようになる",
        "done": false,
        "created_at": "2018-08-08 12:00:00",
        "started_at": "",
        "done_at":""
      },

craftgear

const insertItem = (xs, index, item) => [...xs.slice(0, index), item, ...xs.slice(index)];
const range = number => [...Array(number).keys()];
const permutate = (xs, accum = []) => {
  const [head, ...tail] = xs;

  if (!head) {
    return accum;
  }

  return accum.length === 0

craftgear

const pad = (leftOrRight = 'left') => maxLength => char => value => {
  const strValue = typeof value === 'number' ? value.toString() : value;
  if (strValue.length >= maxLength) {
    return strValue;
  }
  if (typeof maxLength !== 'number') {
    throw new Error('maxLength should be a number');
  }

  const padding = Array(maxLength - strValue.length)

craftgear

func splitByRegexp(str string, separator string) []string {
    normalRe := "[^%s]*[%s]"
    rawRe := `[^%s]*[%s]`

    var re *regexp.Regexp
    if strings.Index(separator, `\\`) > -1 {
        re = regexp.MustCompile(fmt.Sprintf(normalRe, separator, separator))
    } else {
        re = regexp.MustCompile(fmt.Sprintf(rawRe, separator, separator))
    }

craftgear

async (callback) => {
    const { err, ...result } = await asyncCode().catch(e => ({ err: e }));

    if (err) {
      callback(err);
      return;
    }
    callback(null, result);
};

craftgear

async (callback) => {
    try {
        const result = await asyncCode();
        callback(null, result)
    }
    catch (e) {
        callback(e)
    }
}

craftgear

async (callback) => {
    const result = await asyncCode();
    callback(null, result)
}

craftgear

//ミドルウェアでやる場合
app.configure(function(){
//・・・(略)・・・
 app.use(function (req, res, next) {
    app.locals.message = req.session.message;
    next();
 });
//・・・(略)・・・
});

craftgear

# run with 'coffee jadewatch.coffee dirname'
fs = require 'fs'

if process.argv.length < 3 
  console.log 'Aborted: arguments are too short.'
  return
else
  child_process = require('child_process')
  child_process.exec "ps", (err,stdout,stderr)->
    if stdout.indexOf("coffee jadewatch.coffee") < 0