best-promise

select the best promise available at certain moment or leave the choice to the end user

language: also available in: -

Based on any-promise

When testing with Travis-CI best-promise selects a promise library randomly.

In the rest of cases it will work identically to any-promise.

When normal use attempts to load libraries in the following order:

• es6-promise
• promise
• native-promise-only
• bluebird
• rsvp
• when
• q

If no library is installed, attempts to export the global Promise (native or polyfill).

You can specify the PROMISE_IMPL env variable or the PROMISE_RANDOM variable to yes

var Promise = require('best-promise').Promise;

return Promise
  .all([xf, f, init, coll])
  .then(fn);

return new Promise(function(resolve, reject){
  try {
    resolve(item);
  } catch(e){
    reject(e);
  }
});

improvements

You can abrevite the common tasks

var Promises = require('best-promise');
var fs = require('fs-promise');

Promises.start(function(){
    return fs.stat(path+path.sep+fileName);
}).then(function(stat){
    // ...
});