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es6-promisify

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es6-promisify

Converts callback-based functions to ES6 Promises

  • 4.1.0
  • Source
  • npm
  • Socket score

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2
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What is es6-promisify?

The es6-promisify package is a utility that converts callback-based functions to return Promises, making it easier to work with asynchronous code in a more modern and readable way.

What are es6-promisify's main functionalities?

Promisify a single callback-based function

This feature allows you to convert a single callback-based function, such as `fs.readFile`, into a function that returns a Promise. This makes it easier to handle asynchronous operations using modern async/await syntax or Promise chaining.

const promisify = require('es6-promisify');
const fs = require('fs');
const readFileAsync = promisify(fs.readFile);

readFileAsync('example.txt', 'utf8')
  .then(data => console.log(data))
  .catch(err => console.error(err));

Promisify an entire object of callback-based functions

This feature allows you to promisify all functions within an object, such as the `fs` module, so that all of its methods return Promises. This is useful for working with modules that have multiple callback-based methods.

const promisify = require('es6-promisify');
const fs = require('fs');
const fsAsync = promisify(fs);

fsAsync.readFile('example.txt', 'utf8')
  .then(data => console.log(data))
  .catch(err => console.error(err));

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Package last updated on 19 May 2016

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