init source
This commit is contained in:
Le Viet
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Copyright (c) 2016 Overlook Motel (theoverlookmotel@gmail.com)
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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# is-bluebird.js
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# Is this a bluebird promise I see before me?
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[](https://www.npmjs.com/package/is-bluebird)
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[](http://travis-ci.org/overlookmotel/is-bluebird)
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[](https://david-dm.org/overlookmotel/is-bluebird)
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[](https://david-dm.org/overlookmotel/is-bluebird)
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[](https://coveralls.io/r/overlookmotel/is-bluebird)
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## Usage
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Tools to check whether some input is a [bluebird](http://bluebirdjs.com/) promise, a bluebird promise constructor, or determining the version of bluebird from a promise or constructor.
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#### `isBluebird( promise )`
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Returns true if is a bluebird promise, false if not.
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```js
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var isBluebird = require('is-bluebird');
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var Bluebird = require('bluebird');
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console.log( isBluebird( Bluebird.resolve() ) ); // true
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console.log( isBluebird( Promise.resolve() ) ); // false (native JS promise)
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```
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#### `isBluebird.ctor( Promise )`
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Returns true if is bluebird promise constructor, false if not.
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```js
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var isBluebird = require('is-bluebird');
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var Bluebird = require('bluebird');
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console.log( isBluebird.ctor( Bluebird ) ); // true
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console.log( isBluebird.ctor( Promise ) ); // false (native JS promise)
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```
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#### `isBluebird.v2( promise )` / `isBluebird.v3( promise )`
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Returns true if is a bluebird promise of the specified version.
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```js
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var isBluebird = require('is-bluebird');
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var Bluebird2 = require('bluebird2');
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var Bluebird3 = require('bluebird3');
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console.log( isBluebird.v2( Bluebird2.resolve() ) ); // true
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console.log( isBluebird.v2( Bluebird3.resolve() ) ); // false
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console.log( isBluebird.v2( Promise.resolve() ) ); // false (native JS promise)
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```
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#### `isBluebird.v2.ctor( Promise )` / `isBluebird.v3.ctor( Promise )`
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Returns true if is bluebird promise constructor of the specified version.
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```js
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var isBluebird = require('is-bluebird');
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var Bluebird2 = require('bluebird2');
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var Bluebird3 = require('bluebird3');
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console.log( isBluebird.v2.ctor( Bluebird2 ) ); // true
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console.log( isBluebird.v2.ctor( Bluebird3 ) ); // false
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console.log( isBluebird.v2.ctor( Promise ) ); // false (native JS promise)
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```
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## Tests
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Use `npm test` to run the tests. Use `npm run cover` to check coverage.
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## Changelog
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See [changelog.md](https://github.com/overlookmotel/is-bluebird/blob/master/changelog.md)
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## Issues
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If you discover a bug, please raise an issue on Github. https://github.com/overlookmotel/is-bluebird/issues
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## Contribution
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Pull requests are very welcome. Please:
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* ensure all tests pass before submitting PR
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* add an entry to changelog
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* add tests for new features
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* document new functionality/API additions in README
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# Changelog
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## 1.0.0
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* Initial release
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## 1.0.1
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* Fix README typo
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## 1.0.2
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* Update `bluebird` dev dependencies
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* Update dev dependencies
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* Additional tests
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* Travis CI tests all branches (to enable `greenskeeper.io`)
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// --------------------
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// is-bluebird module
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// --------------------
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// exports
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/**
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* Identifies whether input is a bluebird promise.
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* @param {*} promise - Input to be tested
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* @returns {boolean} - true if is a bluebird promise, false if not
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*/
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var isBluebird = function(promise) {
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return isObject(promise) && isBluebird.ctor(promise.constructor);
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};
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/**
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* Identifies whether input is a bluebird promise constructor.
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* @param {*} Promise - Input to be tested
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* @returns {boolean} - true if is bluebird promise constructor, false if not
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*/
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isBluebird.ctor = function(Promise) {
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return typeof Promise == 'function' && !!Promise.prototype && typeof Promise.prototype._addCallbacks == 'function';
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};
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/**
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* Identifies whether input is a bluebird v2 promise.
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* @param {*} promise - Input to be tested
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* @returns {boolean} - true if is a bluebird v2 promise, false if not
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*/
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isBluebird.v2 = function(promise) {
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return isObject(promise) && isBluebird.v2.ctor(promise.constructor);
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};
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/**
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* Identifies whether input is bluebird v2 promise constructor.
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* @alias isBluebird.ctor.v2
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*
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* @param {*} promise - Input to be tested
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* @returns {boolean} - true if is a bluebird v2 promise, false if not
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*/
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isBluebird.v2.ctor = function(Promise) {
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return isBluebird.ctor(Promise) && Promise.prototype._addCallbacks.length == 6;
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};
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isBluebird.ctor.v2 = isBluebird.v2.ctor;
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/**
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* Identifies whether input is a bluebird v3 promise.
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* @param {*} promise - Input to be tested
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* @returns {boolean} - true if is a bluebird v3 promise, false if not
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*/
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isBluebird.v3 = function(promise) {
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return isObject(promise) && isBluebird.v3.ctor(promise.constructor);
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};
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/**
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* Identifies whether input is bluebird v3 promise constructor.
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* @alias isBluebird.ctor.v3
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*
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* @param {*} promise - Input to be tested
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* @returns {boolean} - true if is a bluebird v3 promise, false if not
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*/
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isBluebird.v3.ctor = function(Promise) {
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return isBluebird.ctor(Promise) && Promise.prototype._addCallbacks.length == 5;
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};
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isBluebird.ctor.v3 = isBluebird.v3.ctor;
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/**
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* Check if input is an object.
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* @param {*} obj - Input to be tested
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* @returns {boolean} - true if is an object, false if not
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*/
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function isObject(obj) {
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return !!obj && typeof obj == 'object';
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}
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// export isBluebird
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module.exports = isBluebird;
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{
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"_args": [
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[
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"is-bluebird@1.0.2",
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"/home/app"
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]
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],
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"_from": "is-bluebird@1.0.2",
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"_id": "is-bluebird@1.0.2",
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"_inBundle": false,
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"_integrity": "sha1-CWQ5Bg9KpBGr7hkUOoTWpVNG1uI=",
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"_location": "/is-bluebird",
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"_phantomChildren": {},
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"_requested": {
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"type": "version",
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"registry": true,
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"raw": "is-bluebird@1.0.2",
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"name": "is-bluebird",
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"escapedName": "is-bluebird",
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"rawSpec": "1.0.2",
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"saveSpec": null,
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"fetchSpec": "1.0.2"
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},
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"_requiredBy": [
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"/cls-bluebird"
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],
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"_resolved": "https://registry.npmjs.org/is-bluebird/-/is-bluebird-1.0.2.tgz",
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"_spec": "1.0.2",
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"_where": "/home/app",
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"author": {
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"name": "Overlook Motel"
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},
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"bugs": {
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"url": "https://github.com/overlookmotel/is-bluebird/issues"
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},
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"dependencies": {},
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"description": "Is this a bluebird promise I see before me?",
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"devDependencies": {
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"bluebird2": "^3.0.0",
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"bluebird3": "^3.0.6",
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"chai": "^3.5.0",
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"coveralls": "^2.11.12",
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"istanbul": "^0.4.5",
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"jshint": "^2.9.3",
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"mocha": "^3.0.2"
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},
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"engines": {
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"node": ">=0.10.0"
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},
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"homepage": "https://github.com/overlookmotel/is-bluebird#readme",
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"keywords": [
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"bluebird",
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"promise",
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"is",
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"instance",
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"constructor",
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"version",
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"then",
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"check",
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"test"
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],
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"license": "MIT",
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"main": "./lib/",
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"name": "is-bluebird",
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"repository": {
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"type": "git",
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"url": "git+https://github.com/overlookmotel/is-bluebird.git"
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},
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"scripts": {
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"cover": "npm run cover-main && rm -rf coverage",
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"cover-main": "COVERAGE=true ./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha --report lcovonly -- -R spec 'test/**/*.test.js'",
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"coveralls": "npm run cover-main && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage",
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"jshint": "jshint lib test",
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"test": "if [ $COVERAGE ]; then npm run coveralls; else npm run jshint && npm run test-main; fi",
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"test-main": "./node_modules/mocha/bin/mocha --check-leaks --colors -t 10000 --reporter spec 'test/**/*.test.js'"
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},
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"version": "1.0.2"
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}
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