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a = [1,2,3,4] | |
Hash[*a] #=> {1=>2, 3=>4} | |
a.each_slice(2).to_h #=> {1=>2, 3=>4} |
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(通信)規約 | |
HTTP : インターネットで通信するためのきまり | |
HTTPS : HTTPのセキュア通信版 | |
TCP/IP : インターネット通信のきまり。HTTPの土台になっている。 | |
インフラ | |
github : ソースコードのSNS | |
git : コードのログを取る仕組み | |
apache : rails server と同じ server の一種 |
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class Category < ActiveRecord::Base | |
scope :name, ->(category) { where(name: category )} | |
end | |
Category.name("restaurants") |
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■Ruby(初級) 1と2と3の和を計算して表示してください。 | |
■Ruby(初級) 文字列 "write" 中の e を ten に置換し、 "written"にして表示するコードを書いてください。 | |
■Ruby(中級) Arrayオブジェクトの要素が奇数の項目を全て足すコードを書いてください。例えば array = [2,3,5,7,11] の場合、 (3+5+7+11=) 26 が表示されればOKです。 | |
■Rails (初級) 現在時刻を表示するrailsアプリを作ってください。時刻表示の更新タイミングはアクセス時とします。(表示したら、リロードするまで表示が更新されなくても良いです。) | |
■Rails (中級) おみくじを表示するrailsアプリを作ってください。おみくじの結果は大吉、中吉、小吉、吉、凶 として、凶をほかの候補よりも少しだけ出難くくしてください。 |
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titel: Use cloud services to easily develop Ruby Web applications | |
abstract: (We only have a space of 200 chars.) | |
One of the biggest problems when beginning web app development is setting up the development environment. | |
In this talk, let's talk about how we can easily develop Ruby web apps using cloud services. |
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株式会社spice lifeはECを通して世の中に笑顔を増やすサービスを作ります。spice lifeで開発するのはECの分野、ちょっと変わった、ちょっと新しい、ちょっと世の中を良くするようなECです。もちろんRailsで開発しています。オリジナルTシャツ作成サービスtmixはいろんな技術カンファレンスのスタッフTシャツ作成もしています。 |
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--- | |
category: /日報/2014/10/09/ | |
title: "五十嵐" | |
tags: | |
date: 2014-10-09 11:58:59 +0900 | |
url: https://foo.esa.io/posts/28 | |
--- | |
# 勤務時間 | |
10:00-19:00 |
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key = gets.chomp | |
@dbh.execute("delete from bookinfos where key = #{key}") | |
解説 | |
" " でくくった文字列の中で #{変数名}と書くと、変数に代入されている値を文字列にすることができます。 | |
たとえば | |
foo = "xyz" | |
"abc #{foo}" | |
は | |
"abc xyz" と同じです。 |
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yesno = gets.chomp.upcase | |
p "Y!!!" if /^Y$/ =~ yesno |
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configure:3840: checking whether the C compiler works | |
configure:3862: gcc-4.2 -O3 -Wno-error=shorten-64-to-32 -I/Users/igarashi/.rbe | |
nv/versions/2.1.4/include -L/Users/igarashi/.rbenv/versions/2.1.4/lib conftest | |
.c >&5 | |
couldn't understand kern.osversion `14.0.0' | |
ld: library not found for -lcrt1.o | |
collect2: ld returned 1 exit status | |
configure:3866: $? = 1 | |
configure:3904: result: no | |
configure: failed program was: |