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nano-promise

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nano-promise

A small Promise/A++ node module

    1.2.0latest
    GitHub

Version published
Maintainers
1
Weekly downloads
408
decreased by-20.16%

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nano-promise

A small Promise/A++ node module.

Usage

var Promise = require('nano-promise'); new Promise(function (resolve, reject) { resolve(1, 2, 3, 4); // you can pass several arguments }).then(function (a, b, c, d) { console.log(a, b, c, d); // 1 2 3 4 return new Promise.Arguments(5, 6, 7, 8); // and return }).then(function (a, b, c, d) { console.log(a, b, c, d); // 5 6 7 8 });

Extensions

Promise.resolve(...)

Promise.resolve(5, 'a') .then(function (a, b) { console.log(a, b); });

Like Promise.all() but ...

function timer(ms, value) { return new Promise(function (resolve, reject) { var to = setTimeout(function () { resolve(value); }, ms); return { cancel: function () { clearTimeout(to); // can be called in pending state one time only }}; }); } Promise.resolve(timer(1000, 'go'), timer(800, 'up')) .then(function (a, b) { console.log(a, b); // 'go', 'up' });

Promise.concat(array)

  • array {Array} - array of Promises or values
Promies.concat([ new Promise(function (resolve, reject) { resolve(1, 2, 3, 4); }, new Promise(function (resolve, reject) { resolve(4, 5, 6, 7); }]) .then(function (a,b,c,d,e,f,g,h) { console.log(a,b,c,d,e,f,g,h); // 1 2 3 4 5 6 7 8 });

promise.cancel()

function timer(ms) { return new Promise(function (resolve, reject) { var to = setTimeout(resolve, ms); return { cancel: function () { clearTimeout(to); // can be called in pending state one time only }}; }); } timer(1000).then(function () { console.log('timeout'); }, function (r) { if (r === Promise.CANCEL_REASON) console.log('cancelled'); }).cancel();

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Last updated on 11 Feb 2016

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