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npm install bluebird


var Promise = require("bluebird");

Alternatively in ES6

import * as Promise from "bluebird";

If that ES6 import doesn't work

import {Promise} from "bluebird";


(See also Installation.)

There are many ways to use bluebird in browsers:

When using script tags the global variables Promise and P (alias for Promise) become available. Bluebird runs on a wide variety of browsers including older versions. We'd like to thank BrowserStack for giving us a free account which helps us test that.