blackbing · August 29, 2015 14:01
diff --git a/deferred-pipe-example.coffee b/deferred-pipe-example.coffee
 query = (task, callback)->
  #do something
  callback(task + ' finished')
  
 #nested way
 query('task1', (msg)->
  console.log msg
  query('task2', (msg)->
    console.log msg
    query('task3', (msg)->
      console.log msg
    )
  )
 )

 #function call function
 task1 = ->
  query('task1', (msg)->
    console.log 'function ' + msg
    task2()
  )

 task2 = ->
  query('task2', (msg)->
    console.log 'function ' + msg
    task3()
  )

 task3 = ->
  query('task3', (msg)->
    console.log 'function ' + msg
  )

 task1()


 #Deferred
 query_dfr = (task)->
  _dfr = $.Deferred()
  query(task, (msg)->
    _dfr.resolve(msg)
  )
  _dfr.promise()
  

  
 query_dfr('task1')
 .pipe((msg)->
  console.log ('Deferred ' + msg )
  query_dfr('task2')
 ).pipe((msg)->
  console.log ('Deferred ' + msg )
  query_dfr('task3')
 ).pipe( (msg)->
  console.log ('Deferred ' + msg )
 )
diff --git a/deferred-pipe-example.html b/deferred-pipe-example.html
 <!DOCTYPE html>
 <html>
 <head>
 <script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
  <meta charset="utf-8">
  <title>JS Bin</title>
 </head>
 <body>

 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<head>
	<script src="http://code.jquery.com/jquery-2.1.0.min.js"></script>
	<meta charset="utf-8">
	<title>JS Bin</title>
	</head>
	<body>

	</body>
	</html>