Benchmark.ips do |x| 3.upto(10) do |i| x.report(i) do h = {} i.times do |j| h[j.to_s] = j end end end end 2.2 时候，得益于 Object#hash 方法的改进，hash 值更加均匀分布，从质数取模改成了用位操作： def index

like in Heroku: Receiving notification of bounced emails from Mailgun When an email is bounced, Mailgun will send a POST via the bounce webhook to our app. You need to set the callback url under

LINE, [:putobject, 3], [:putobject, 3], [:opt_plus, {:mid=>:+, :flag=>16, :orig_argc=>1}, false], [:leave]] ## # MJIT C code created from the `:opt_plus` instruction above: VALUE opt_plus(a, b) { if (not_redefined(int_plus

Keynote 在这里（需要翻墙）： https://speakerdeck.com/benz303/2-dot-5-ge-ren-ru-he-kai-fa-kuan-kua-zhong-duan-de-chan-pin 不看 Keynote 也没关系，我会具体说下我们公司（简单心理）如何在仅有 2.5 个人的情况下，基于

linux|darwin)/)[0].to_sym Bundler.require(platform) ``` * 不要把 `Gemfile.lock` 文件从版本控制里移除。这不是随机产生的文件 - 它确保你所有的组员执行 `bundle install` 时，获得相同版本的 gem 。 ## 无价的 Gems 一个最重要的编程理念是 "不要重造轮子！" 。若你遇到一个特定问题，你应该要在你开始前，看一下是否有存在的解决方案。下面是一些在很多 Rails 项目中 "无价的" gem 列表（全部兼容 Rails 3.1）： * [active_admin

benchmark 代码中使用这些方法： puts "****CPU Bound****" c1, w1 = DiyProf::cpu_time, DiyProf::wall_time 10000.times do |i| Math.sqrt(i) end c2, w2 = DiyProf::cpu_time, DiyProf::wall_time puts "CPU time\t=\t#{c2-c1}Wall

lightbox_steps.rb posts_steps.rb template_steps.rb conversations_steps.rb mention_steps.rb profile_steps.rb uri-step.rb custom_web_steps.rb message_steps.rb scope_steps.rb user_steps.rb debug_steps.rb mobile_steps.rb session_steps.rb web_steps.rb teambox [item]_[action].feature 我偏向这种，因为分类清楚点 project_archive.feature upload_rename.feature project_create.feature user_change_password.feature project_delete.feature user_edit_profile.feature project_invitations.feature user_edit_settings.feature project_join.feature user_first_steps.feature project_leave.feature user_login.feature project_public.feature user_logout.feature

beneficial. For example, ByteDance developed rust2go[1] to facilitate migrating Golang projects to Rust smoothly[2]. Importing Rust into Ruby can not only improve performance but also reduce tedious, repetitive work. For instance, Rust

link_tag 'application', media: 'all', 'data-turbolinks-track' => true %> 我们注意到 csrf_meta_tags 这段代码，它会帮我们在页面上嵌入一个存储 csrf-token 的 meta 标签, 比如:'', 如果我们使用 form_tag, form_for 之类的表单辅助方法， rails 会自动帮我们生成一个包含 csrf-token

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library by specifying crate-type = ["dylib"] in Cargo.toml. Then we can calls the function through fiddle[2]. For example: #[allow(non_snake_case)] #[no_mangle] pub extern "C" fn rust_method() { println!("hello from Rust

LIMIT 1; 更新旧数据 post.blog_content = "十一"; db.blog.update({title: "My Blog Post"}, post) UPDATE set blog_content = "十一" WHERE title = "My Blog Post"; 更新新增 COLUMN post.comments = "very good"; db.blog.update({title : "My Blog Post"}, post) ALTER table