Joe Wang joe11051105

前端工程師面試問題集

@版本 2.0.0

譯注：此翻譯版，主要給不能流利的讀英文的人看，相關專有名詞還是保留原文。翻譯不好地方請協助pull request.

此repository包含了一些前端開發的面試問題，來審查一個有潛力的面試者。這並不是建議你對同一個面試者問上所有的問 (那會花費好幾小時)。從列表中挑幾個題目，應該就夠幫助你審查面試者是否擁有你需要的技能。

Rebecca Murphey 的 Baseline For Front-End Developers 也是一篇很棒且值得讀的文章在你開始面試之前。

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

Instrument Anything in Rails 3

With Rails 3.0 released a few weeks ago I've migrated a few apps and I'm constantly finding useful new improvements. One such improvement is the ability to log anything in the same way that Rails internally logs ActiveRecord and ActionView. By default Rails 3 logs look slightly spiffier than those produced by Rails 2.3: (notice the second line has been cleaned up)

Started GET "/" for 127.0.0.1 at Mon Sep 06 01:07:11 -0400 2010
  Processing by HomeController#index as HTML
  User Load (0.2ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1
  CACHE (0.0ms)  SELECT `users`.* FROM `users` WHERE (`users`.`id` = 3) LIMIT 1

Rendered layouts/_nav.html.erb (363.4ms)

	0-mail.com
	0815.ru
	0clickemail.com
	0wnd.net
	0wnd.org
	10minutemail.com
	20minutemail.com
	2prong.com
	30minutemail.com
	3d-painting.com

	########################
	# Customize the test machine
	########################
	machine:

	# Set the timezeone - any value from /usr/share/zoneinfo/ is valid here
	timezone:
	America/Los_Angeles

	# Version of ruby to use

	#Model

	@user.should have(1).error_on(:username) # Checks whether there is an error in username
	@user.errors[:username].should include("can't be blank") # check for the error message

	#Rendering
	response.should render_template(:index)

	#Redirecting
	response.should redirect_to(movies_path)

	# Add these methods to your ApplicationController. Then, any controller
	# that inherits from it will have these methods and can programmatically
	# determine what filters it has set.
	class ApplicationController < ActionController::Base

	def self.filters(kind = nil)
	all_filters = _process_action_callbacks
	all_filters = all_filters.select{\|f\| f.kind == kind} if kind
	all_filters.map(&:filter)
	end

	# autoload concerns
	module YourApp
	class Application < Rails::Application
	config.autoload_paths += %W(
	#{config.root}/app/controllers/concerns
	#{config.root}/app/models/concerns
	)
	end
	end

	[api]: New apis / changes to apis
	[test]: Update test/* files
	[dist]: Changes to submodules, version bumps, updates to package.json
	[minor]: Small changes
	[doc]: Updates to documentation
	[ux]: Updates to UX
	[fix]: Bug fixes
	[bin]: Update binary scripts associated with the project
	[merge]: Resolved git merge from upstream or otherwise
	[refactor]: Refactor of existing code with no external API changes