cantin

let fs = require('fs')
let parser = require("@babel/parser")
let traverse = require("@babel/traverse")

function collectCalls(filepath) {
  let results = []

  let code = fs.readFileSync(filepath).toString()
  let ast = parser.parse(code, {
    // parse in strict mode and allow module declarations

cantin

tutors = ["***", "***", "***"]
girls = ["***", "***", "***"]

number = "To be defined"
tutors = tutors.shuffle(random: Random.new(number))
girls = girls.shuffle(random: Random.new(number))
result = Hash.new { |hash, key| hash[key] = [] }

tutors.cycle(3).each_with_index do |tutor, i|
  result[tutor] << (girls[i] || "未配对")

cantin

//Accept zoneStr such as '-0400', '-04:00', '0400', '+0400'
//Return such as 4, -4, -4.75, -4.5
function tranformTimeZone(zoneStr) {
  var signSymbol, hours, minutes, zone;

  if (/^\+|-/.test(zoneStr)) {
    signSymbol = zoneStr[0];
    zoneStr = zoneStr.slice(1);
  } else {
    signSymbol = '+';

cantin

class Iterator < Enumerator
  def initialize obj, meth, *args
    super() do |y|
      loop do
        y << obj
        obj = obj.send(meth, *args)
      end
    end
  end
end

cantin

Due to the rails2.x is not compatible wtih RubyGem > 1.6, need downgrade RubyGem if run rails2.x app

gem uninstall rubygems-update
gem install rubygems-update -v 1.4.2
update_rubygems

cantin

$ rspec --format MacVimFormatter --color spec

cantin

> DB_STRUCTURE=db/null_schema.sql rake db:structure:dump


class NullMigration < ActiveRecord::Migration
  def up
    file_data = File.read('db/migrate/null_schema.sql')
    ActiveRecord::Base.connection.execute file_data
  end

  def down

cantin

require 'forwardable'

class A
  extend Forwardable

  def initialize
    @arr =  Array.new
  end

  def_delegator :@arr, :push, :add

cantin

 f = lambda {|x, y=1| puts(x+y) }
f = ->(x, y =1) { puts(x+y) }

cantin

--export
mysql -u user -p password database_name > export.sql
mysql -u user -p password database_name table_name > export.csv

--import
mysql -u user -p password
source export.sql