├── .gitignore
├── LICENSE
├── README.md
├── index.js
└── package.json


/.gitignore:
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 1 | # Logs
 2 | logs
 3 | *.log
 4 | 
 5 | # Runtime data
 6 | pids
 7 | *.pid
 8 | *.seed
 9 | 
10 | # Directory for instrumented libs generated by jscoverage/JSCover
11 | lib-cov
12 | 
13 | # Coverage directory used by tools like istanbul
14 | coverage
15 | 
16 | # Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
17 | .grunt
18 | 
19 | # node-waf configuration
20 | .lock-wscript
21 | 
22 | # Compiled binary addons (http://nodejs.org/api/addons.html)
23 | build/Release
24 | 
25 | # Dependency directory
26 | # https://www.npmjs.org/doc/misc/npm-faq.html#should-i-check-my-node_modules-folder-into-git
27 | node_modules
28 | 


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/LICENSE:
--------------------------------------------------------------------------------
 1 | The MIT License (MIT)
 2 | 
 3 | Copyright (c) 2015 WEILAI
 4 | 
 5 | Permission is hereby granted, free of charge, to any person obtaining a copy
 6 | of this software and associated documentation files (the "Software"), to deal
 7 | in the Software without restriction, including without limitation the rights
 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9 | copies of the Software, and to permit persons to whom the Software is
10 | furnished to do so, subject to the following conditions:
11 | 
12 | The above copyright notice and this permission notice shall be included in all
13 | copies or substantial portions of the Software.
14 | 
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 | SOFTWARE.
22 | 
23 | 


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/README.md:
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 1 | # Promise +
 2 | Promise with callback in each step.
 3 | 
 4 | ### Install
 5 | ```
 6 | npm i tvrcgo/promise
 7 | ```
 8 | 
 9 | ### Content
10 | - `promise()`
11 | - `then()`
12 | - `catch()`
13 | 
14 | ### Usage
15 | ```js
16 | promise(function(done, reject){
17 | 	console.log('init');
18 |     done(3);
19 | 
20 | }).then(function(result, done, reject){
21 | 	console.log('next 1', result); // result=3
22 |     done(2);
23 | 
24 | }).then(function(result, done, reject){
25 | 	console.log('next 2', result); // result=2
26 | 
27 | }).catch(function(err){
28 | 	console.error(err);
29 | 
30 | })
31 | ```
32 | 
33 | ### License
34 | MIT
35 | 


--------------------------------------------------------------------------------
/index.js:
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 1 | 'use strict';
 2 | 
 3 | /**
 4 |  * promise
 5 |  * @param  {function} fn
 6 |  */
 7 | function promise(fn){
 8 |     if (!(this instanceof promise)) {
 9 |         return new promise(fn);
10 |     }
11 |     this.promise = new Promise(function(resolve, reject){
12 |         fn && fn(resolve, reject);
13 |     });
14 | };
15 | 
16 | /**
17 |  * then
18 |  * @param  {Function} fn
19 |  * @return {object}      [promise]
20 |  */
21 | promise.prototype.then = function(fn){
22 |     return promise(function(resolve, reject){
23 |         this.promise.then(function(result){
24 |             fn && fn(result, resolve, reject);
25 |         }).catch(function(err) {
26 |             reject(err);
27 |         });
28 |     }.bind(this));
29 | }
30 | 
31 | /**
32 |  * catch
33 |  * @param  {Function} fn [description]
34 |  * @return {object}      [promise]
35 |  */
36 | promise.prototype.catch = function(fn) {
37 |     this.promise.catch(fn);
38 |     return this;
39 | }
40 | 
41 | module.exports = promise;
42 | 


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/package.json:
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 1 | {
 2 |   "name": "promise",
 3 |   "version": "1.0.0",
 4 |   "description": "promise with callback in each step.",
 5 |   "main": "index.js",
 6 |   "scripts": {
 7 |     "test": "cd test && mocha test.js"
 8 |   },
 9 |   "repository": {
10 |     "type": "git",
11 |     "url": "git+https://github.com/tvrcgo/promise.git"
12 |   },
13 |   "keywords": [
14 |     "flow"
15 |   ],
16 |   "author": "tvrcgo",
17 |   "license": "MIT",
18 |   "bugs": {
19 |     "url": "https://github.com/tvrcgo/promise/issues"
20 |   },
21 |   "homepage": "https://github.com/tvrcgo/promise#readme"
22 | }
23 | 


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