https://github.com/kflorence/jquery-deferred-sequence

Sequentially process a value through a list of jQuery Deferred objects.
https://github.com/kflorence/jquery-deferred-sequence

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Sequentially process a value through a list of jQuery Deferred objects.

• Host: GitHub
• URL: https://github.com/kflorence/jquery-deferred-sequence
• Owner: kflorence
• License: gpl-2.0
• Created: 2013-01-20T04:55:24.000Z (almost 12 years ago)
• Default Branch: master
• Last Pushed: 2016-12-31T22:58:58.000Z (almost 8 years ago)
• Last Synced: 2024-12-01T09:12:45.823Z (22 days ago)
• Language: JavaScript
• Homepage:
• Size: 10.7 KB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: readme.md
  • License: license-gpl

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README

        
# jQuery Deferred Sequence

Allows a value to be sequentially processed through a list of objects, usually

[Deferred](http://api.jquery.com/category/deferred-object/) objects that represent asynchronous events.

```javascript

var value = 0,

    items = [

        function( value ) {

            return value + 1;

        },

        function( value ) {

            var dfd = $.Deferred();

            setTimeout(function() {

                dfd.resolve( value * 2 );

            }, 1000 );

            return dfd;

        },

        function( value ) {

            return value * value;

        }

    ],

    sequence = $.Deferred.Sequence( items );

sequence.reduce( value, function( func, value ) {

    return $.when( func( value ) );

}).done(function( value ) {

    console.log( value ); // => 4

});

```

## Methods

*   **reduce(** [ _intialValue_, ] _callbackFunction_ [, _context_ ] **)** _Promise_  

    Apply a function against each item in the sequence, optionally calling

    the function with the specified context.

## Properties

*   **head** _Deferred_  

    A deferred object representing the beginning of the sequence.

*   **items** _Array_, _Object_  

    The items given to the sequence on initialization.

*   **master** _Deferred_  

    A deferred object which tracks the aggregate state of all the deferreds

    in the sequence.

*   **tail** _Deferred_  

    A deferred object representing the end of the sequence.

## License

Copyright (c) 2013 Kyle Florence  

Dual licensed under the MIT and GPLv2 licenses.