shunjikonishi

{
  "ref": "refs/heads/master",
  "before": "2a2496f5295e6114b17360c2f33e1ab57ba3ab78",
  "after": "1970003cb79b1c868bff1c81136dac5d5722a8f4",
  "created": false,
  "deleted": false,
  "forced": false,
  "base_ref": null,
  "compare": "https://github.com/givery-technology/codeprep-contents-new/compare/2a2496f5295e...1970003cb79b",
  "commits": [

shunjikonishi

Usecase

• There are too many items.
  • e.g. log output
  • It migght be more than million.
• Need to store latest 1000 items.

Solution

We can implement with simple array

shunjikonishi

"use strict";

var React       = require("react");
var Link        = require('react-router').Link;

var Tabs = React.createClass({
  render: function() {
    return (
      <div>
        <ul>

shunjikonishi

module.exports = function (grunt) {
  'use strict';

  require('load-grunt-tasks')(grunt);
  require('time-grunt')(grunt);

  var webpack = require("webpack");
  var ExtractTextPlugin = require("extract-text-webpack-plugin");

  var proxyOptionsLocal = {

shunjikonishi

var assert = require("chai").assert;
var codecheck = require("codecheck");

var expected = [];
for (var i=1; i<= 100; i++ ) {
  if(i % 15 == 0) expected.push("FizzBuzz");
  else if (i % 5 == 0) expected.push("Buzz");
  else if (i % 3 == 0) expected.push("Fizz");
  else expected.push("" + i);
}

shunjikonishi

      SELECT
        c.id,
        count(cr.id) as count
      FROM challenges c
      LEFT OUTER JOIN exam_challenges ec ON (c.id = ec.challenge_id)
      INNER JOIN exams e ON (ec.exam_id = e.id)
      LEFT OUTER JOIN exam_delivers ed ON (ed.exam_id = e.id)
      LEFT OUTER JOIN challenge_results cr ON (c.id = cr.challenge_id AND cr.deliver_id = ed.id)
      WHERE c.user_id in (1)
      GROUP BY c.id

shunjikonishi

    val c = Challenge.syntax("c")
    val cr = ChallengeResult.syntax("cr")
    val list = withSQL {
      select(
        c.result.*,
        sqls"count(cr.id) as count"
      ).from(Challenge as c)
        .leftJoin(ChallengeResult as cr)
        .on(c.id, cr.challengeId)
        .where(buildCondition(user.id, publicOnly))

shunjikonishi

// http://www.softantenna.com/wp/software/5-programming-problems/
// Problem 5
case class Expr(str: String, ret: Int) {
  def plus(n: Int) = Expr(str + " + " + n, ret + n)
  def minus(n: Int) = Expr(str + " - " + n, ret - n)
  def concat(n: Int) = {
    val next = last match {
      case 0 => ret * 10 + n
      case x if (x < 0) => ret - x + (x * 10) - n
      case x if (x > 0) => ret - x + (x * 10) + n

shunjikonishi

scala> val a = "Jack"
a: String = Jack

scala> a.hello
<console>:9: error: value hello is not a member of String
              a.hello
                ^

scala> class B(s: String) {
     | def hello = "Hello " + s

shunjikonishi

"use strict";

/*
CREATE TABLE users (
  id                    SERIAL       PRIMARY KEY,
  name                  VARCHAR(255) NOT NULL,
  email                 VARCHAR(255) NULL,
  github_username       VARCHAR(255) NULL,
  password              VARCHAR(255) NULL,
  image_url             VARCHAR(255) NULL,