jay16

# 30 minutes Lisp in Ruby
# Hong Minhee <http://dahlia.kr/>
#
# This Lisp implementation does not provide a s-expression reader.
# Instead, it uses Ruby syntax like following code:
#
#     [:def, :factorial,
#       [:lambda, [:n],
#         [:if, [:"=", :n, 1],
#               1,

jay16

#encoding: utf-8
require "fileutils"
namespace :my_db do  desc "Backup project database. Options: DIR=backups RAILS_ENV=production MAX=7"
  desc "usage - bundle exec rake my_db:backup  RAILS_ENV=production MAX=15 DIR=db/db.bak"
  task :backup => [:environment] do
    # config base dir
    datestamp = Time.now.strftime("%Y%m%d%H%M")
    base_path = Rails.root
    backup_folder = File.join(base_path, ENV["DIR"] || "backups")
    FileUtils.mkdir_p(backup_folder) unless File.exist?(backup_folder)

jay16

Alt + F11 进入宏编辑界面
========================================
' 当前宏对excel的操作与excel的事件冲突时
Application.EnableEvents = False
' Your Code'
Application.EnableEvents = True
=========================================
' 禁止删除行

Application.CommandBars("Cell").Controls(6).Enabled = False

jay16

// Settings in here override those in "Default/Preferences.sublime-settings", and
// are overridden in turn by file type specific settings.
{
	"color_scheme": "Packages/Color Scheme - Default/Monokai.tmTheme",
	"font_face": "Monaco",
	"font_size": 14,
	// Valid options are "no_bold", "no_italic", "no_antialias", "gray_antialias",
	// "subpixel_antialias" and "no_round" (OS X only)
	// 字体选项：no_bold 不显示粗体字，no_italic 不显示斜体字，no_antialias 和 no_antialias 关闭反锯齿
	// subpixel_antialias 和 no_round 是 OS X 系统独有的

jay16

#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)

jay16

Routes

小心地使用 Match（Rails 3 已实现）

Rails 3 提供了 match 方法供我们自定义 routes，然而我们要小心使用它以避免“跨站脚本攻击”（XSS Attack）。比如像这样的 routes：

注：（r3 代表 Rails 3，r4 代表 Rails 4）

# routes.rb

jay16

<!--
  监视input输入为手机号
  即输入内容为11位数字
-->
<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
<input type="text" id="number">

<script>
function chk_phone_number(input) {
    if(input.val().toString().match(/^[-]?[0-9]+[\.]?[0-9]*$/)==null ||

jay16

ctrl+a 跳到行首
ctrl+e 跳到末尾

ctrl+d 删除光标后1个字符
ctrl+h 删除光标前1个字符

ctrl+u 清除至行首
ctrl+k 清除至行尾

ctrl+f 光标后移1个字符

jay16

  <div id="picture_show" style="position: absolute; display: none;  background: none repeat scroll 0% 0% rgb(211, 211, 211); border-radius: 5px;z-index: 10000; ">
    <img>
  </div>

  //picture show orginal size
  $("#picture_list img").each(function(){
    $img = $(this); 
     $tooltip = $("#picture_show");

     $img.hover(

jay16

bundle install --path vendor/bundle  
gem install rails -v 版本号