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    promise-lightpublic

    promise-light - npm

    promise-light is standard ES6 Promise implementation.
    it supports browser Chrome, Firefox, ie11, ie9, ie8. (tested)
    also supports node.js/io.js.

    it throws unhandled rejection error.

    if you have native Promise then use it.

    (faster than native Promise)

    INSTALL:

    NPM NPM

    for node.js or io.js

    $ npm install promise-light --save

    or

    for browsers

    https://lightspeedworks.github.io/promise-light/promise-light.js

    <script src="https://lightspeedworks.github.io/promise-light/promise-light.js"></script>

    PREPARE:

    you can use Promise. (native Promise or promise-light)

    (function (Promise) {
      'use strict';
      // you can use Promise
    })(typeof Promise === 'function' ? Promise : require('promise-light'));

    or

    use native Promise or promise-light.

    var Promise = this.Promise || require('promise-light');

    native Promise is overwritten by promise-light.

    var Promise = this.PromiseLight || require('promise-light');

    USAGE:

    Promise Specification

    new Promise(setup)

    how to make promise.

    = new Promise(
      function setup(resolve, reject) {
        // async process -> resolve(value) or reject(error)
        try { resolve('value'); }
        catch (error) { reject(error); }
      }
    );
    // setup(
    //  function resolve(value) {},
    //  function reject(error) {})

    example

    var p = new Promise(
      function setup(resolve, reject) {
        setTimeout(function () {
          if (Math.random() < 0.5) resolve('value');
          else reject(new Error('error'));
        }, 100);
      }
    );
     
    p.then(console.info.bind(console),
           console.error.bind(console));

    promise.then(onFulfilled, onRejected)

    how to use promise.

    = p.then(
      function resolved(value) {},
      function rejected(error) {});

    example

    = p.then(
      function resolved(value) {
        console.info(value);
      },
      function rejected(error) {
        console.error(error);
      });

    promise.catch(onRejected)

    how to catch error from promise.

    = p.catch(
      function rejected(error) {});

    or

    when you use old browser

    = p['catch'](
      function rejected(error) {});

    Promise.all(iterable or array)

    wait for all promises.

    = Promise.all([promise, ...]);

    Promise.race(iterable or array)

    get value or error of first finished promise.

    = Promise.race([promise, ...]);

    Promise.resolve(value or promise)

    get resolved promise.

    = Promise.resolve(value or promise);

    Promise.reject(error)

    get rejected promise.

    = Promise.reject(error);

    Promise.accept(value)

    get resolved (accepted) promise.

    = Promise.accept(value);

    Promise.defer()

    make deferred object with promise.

    dfd = Promise.defer();
    // -> {promise, resolve, reject}

    LICENSE:

    MIT

    Keywords

    install

    npm i promise-light

    Downloadsweekly downloads

    0

    version

    0.1.14

    license

    MIT

    homepage

    github.com

    repository

    githubgithub

    last publish

    collaborators

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