UprototypeU

最近参加了几场面试，积累了一些高频面试题，我把面试题分为两类，一种是基础试题: 主要考察前端技基础是否扎实，是否能够将前端知识体系串联。一种是开放式问题: 考察业务积累，是否有自己的思考，思考问题的方式，这类问题没有标准答案。

基础题

题目的答案提供了一个思考的方向，答案不一定正确全面，有错误的地方欢迎大家请在评论中指出，共同进步。
怎么去设计一个组件封装

组件封装的目的是为了重用，提高开发效率和代码质量
低耦合，单一职责，可复用性，可维护性
前端组件化设计思路

tyler-boyd

# Clear existing task so we can replace it rather than "add" to it.
Rake::Task["deploy:compile_assets"].clear

namespace :deploy do

  desc 'Compile assets'
  task :compile_assets => [:set_rails_env] do
    # invoke 'deploy:assets:precompile'
    invoke 'deploy:assets:precompile_local'
    invoke 'deploy:assets:backup_manifest'

theorygeek

# frozen_string_literal: true
class AssociationLoader < GraphQL::Batch::Loader
  attr_reader :klass, :association

  def initialize(klass, association)
    raise ArgumentError, "association to load must be a symbol (got #{association.inspect})" unless association.is_a?(Symbol)
    raise ArgumentError, "cannot load associations for class #{klass.name}" unless klass < ActiveRecord::Base
    raise TypeError, "association #{association} does not exist on #{klass.name}" unless klass.reflect_on_association(association)

    @klass = klass

jorgedavila25

class ElasticSearchConnection < GraphQL::Relay::BaseConnection
  def has_next_page
    !nodes.last_page?
  end

  def has_previous_page
    !nodes.first_page?
  end

  def cursor_from_node(node)

vjt

import File.expand_path(File.dirname(__FILE__) + '/schema_format.rb')

namespace :db do
  # Define PG environment utility methods
  task :pg_env => :environment do
    def pg_get_config
      ActiveRecord::Base.configurations.fetch(Rails.env).tap do |config|
        ENV['PGHOST']     = config['host'].to_s     if config.key?('host')
        ENV['PGPORT']     = config['port'].to_s     if config.key?('port')
        ENV['PGPASSWORD'] = config['password'].to_s if config.key?('password')

lennart

autocmd BufNewFile,BufRead *.erb set filetype=eruby-coffee