Is-bluebird NPM

is-bluebird.js

Is this a bluebird promise I see before me?

Usage

Tools to check whether some input is a bluebird promise, a bluebird promise constructor, or determining the version of bluebird from a promise or constructor.

`isBluebird( promise )`

Returns true if is a bluebird promise, false if not.

var isBluebird = require('is-bluebird');
var Bluebird = require('bluebird');

console.log( isBluebird( Bluebird.resolve() ) ); // true
console.log( isBluebird( Promise.resolve() ) ); // false (native JS promise)

`isBluebird.ctor( Promise )`

Returns true if is bluebird promise constructor, false if not.

var isBluebird = require('is-bluebird');
var Bluebird = require('bluebird');

console.log( isBluebird.ctor( Bluebird ) ); // true
console.log( isBluebird.ctor( Promise ) ); // false (native JS promise)

`isBluebird.v2( promise )` / `isBluebird.v3( promise )`

Returns true if is a bluebird promise of the specified version.

var isBluebird = require('is-bluebird');
var Bluebird2 = require('bluebird2');
var Bluebird3 = require('bluebird3');

console.log( isBluebird.v2( Bluebird2.resolve() ) ); // true
console.log( isBluebird.v2( Bluebird3.resolve() ) ); // false
console.log( isBluebird.v2( Promise.resolve() ) ); // false (native JS promise)

`isBluebird.v2.ctor( Promise )` / `isBluebird.v3.ctor( Promise )`

Returns true if is bluebird promise constructor of the specified version.

var isBluebird = require('is-bluebird');
var Bluebird2 = require('bluebird2');
var Bluebird3 = require('bluebird3');

console.log( isBluebird.v2.ctor( Bluebird2 ) ); // true
console.log( isBluebird.v2.ctor( Bluebird3 ) ); // false
console.log( isBluebird.v2.ctor( Promise ) ); // false (native JS promise)