Détail du package

do

metarhia2.7kMIT0.7.0

The simplest way to manage asynchronicity

metasync, callback, callbacks, promise

readme

"do" is the simplest way to manage asynchronicity

If you don't want to use all the async/chain libraries but just want a reliable way to know when the function is done - this is for you.

Installation

npm i do

Usage

Series async execution

const chain = require('do');

const c1 = chain
  .do(readConfig, 'myConfig')
  .do(selectFromDb, 'select * from cities')
  .do(getHttpPage, 'http://kpi.ua')
  .do(readFile, 'README.md');

c1((err, result) => {
  console.log('done');
  if (err) console.log(err);
  else console.dir({ result });
});

Data collector

const chain = require('do');
const fs = require('fs');

const dc = chain.do(6);

dc('user', null, { name: 'Marcus Aurelius' });
fs.readFile('HISTORY.md', (err, data) => dc.collect('history', err, data));
fs.readFile('README.md', dc.callback('readme'));
fs.readFile('README.md', dc('readme'));
dc.take('readme', fs.readFile, 'README.md');
setTimeout(() => dc.pick('timer', { date: new Date() }), 1000);

Run tests

npm test

License & Contributors

changelog

0.4.0

Revert fix introduced in 0.2.0, instead provide documentation and a way how to avoid such issues. Using nextTick causes loosing stack traces and is not the right way to fix this.

0.3.0

Implement Do#complete
Make error/success callbacks optional if complete is used

0.2.0

Fix sync callbacks issue, more info in Do#done api description.

0.1.0

Ensured success callback can be triggered only once.