dereknguyen269

## master.balde.php
<!DOCTYPE html>
<html lang="en">
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <title>{{$heading_title}}</title>
        <meta name="viewport" content="width=device-width, initial-scale=1">

        <link rel="icon" href="{{ secure_asset($site_favicon)}}" sizes="16x16">

## Locking.rb
account = Account.find_by_user_id(5)

## Locking_2.rb
if account.balance >= item.price
    account.balance = account.balance - item.price
    #some other long processes here
    account.save
end

## Locking_3.rb
#account.balance = 100
account = Account.find_by_user_id(5)


#item.price is 50
if account.balance >= item.price
  #it's good, allow user to buy this item
  account.balance = account.balance - item.price

  #account.balance is now 50

## Locking_4.rb
account = Account.find_by_user_id(5)
#account.balance is still 100

#item.price is 80
if account.balance >= item.price
  #it's good, allow user to buy this item
  account.balance = account.balance - item.price

  #account.balance is now 20

## Locking_5.rb
p1 = Person.find(1)
p2 = Person.find(1)

p1.first_name = "Michael"
p1.save

p2.first_name = "should fail"
p2.save # Raises a ActiveRecord::StaleObjectError

## Locking_6.rb
account = Account.find_by_user_id(5)
account.lock!
#no other users can read this account, they have to wait until the lock is released
account.save!
#lock is released, other users can read this account

## gist:1e6f7d33df721fb35a602952d6b4fb40
Provide an explanation of **what** these changes are, and provide a
context that helps understand **why** they are made.

---

**Before submitting, check that:**

 - [ ] You have added (passing) tests for your code.
 - [ ] You have written good* commit messages.
 - [ ] You have squashed relevant commits together.

## readme.md

      
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                dereknguyen269
                / readme.md
            
            
              Created
              January 4, 2017 13:01
                — forked from coolaj86/how-to-publish-to-npm.md
            
              
                How to publish packages to NPM
              
          
    Getting Started with NPM (as a developer)

If you haven't already set your NPM author info, now you should:
npm set init.author.name "Your Name"
npm set init.author.email "you@example.com"
npm set init.author.url "http://yourblog.com"

npm adduser

  
## gist:c2952755c96d91fd1271f3beae0f8b67
– Theme Boxy: thay áo cho Sublime Text.
– SublimeCodeIntel: gợi ý code thông minh.
– Emmet: package nổi tiếng và có trên hầu hết các editor và ide hiện tại, giúp viết HTML một cách nhanh chóng, bạn có thể tìm hiểu thêm về cách sử dụng và cheatsheet của nó.
– MarkdownEditing: viết lách với Markdown
– AdvancedNewFile: tạo nhanh file và thư mục
– SideBarEnhancements: nâng cấp tính năng cho Sidebar.
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<meta charset="utf-8">
	<meta http-equiv="X-UA-Compatible" content="IE=edge">
	<title>{{$heading_title}}</title>
	<meta name="viewport" content="width=device-width, initial-scale=1">

	<link rel="icon" href="{{ secure_asset($site_favicon)}}" sizes="16x16">
	if account.balance >= item.price
	account.balance = account.balance - item.price
	#some other long processes here
	account.save
	end
	#account.balance = 100
	account = Account.find_by_user_id(5)


	#item.price is 50
	if account.balance >= item.price
	#it's good, allow user to buy this item
	account.balance = account.balance - item.price

	#account.balance is now 50
	account = Account.find_by_user_id(5)
	#account.balance is still 100

	#item.price is 80
	if account.balance >= item.price
	#it's good, allow user to buy this item
	account.balance = account.balance - item.price

	#account.balance is now 20
	p1 = Person.find(1)
	p2 = Person.find(1)

	p1.first_name = "Michael"
	p1.save

	p2.first_name = "should fail"
	p2.save # Raises a ActiveRecord::StaleObjectError
	account = Account.find_by_user_id(5)
	account.lock!
	#no other users can read this account, they have to wait until the lock is released
	account.save!
	#lock is released, other users can read this account
	Provide an explanation of what these changes are, and provide a
	context that helps understand why they are made.

	---

	Before submitting, check that:

	- [ ] You have added (passing) tests for your code.
	- [ ] You have written good* commit messages.
	- [ ] You have squashed relevant commits together.
	– Theme Boxy: thay áo cho Sublime Text.
	– SublimeCodeIntel: gợi ý code thông minh.
	– Emmet: package nổi tiếng và có trên hầu hết các editor và ide hiện tại, giúp viết HTML một cách nhanh chóng, bạn có thể tìm hiểu thêm về cách sử dụng và cheatsheet của nó.
	– MarkdownEditing: viết lách với Markdown
	– AdvancedNewFile: tạo nhanh file và thư mục
	– SideBarEnhancements: nâng cấp tính năng cho Sidebar.