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standard-as-callback

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standard-as-callback

A performant and standard (Bluebird) library that registers a node-style callback on a promise


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What is standard-as-callback?

The standard-as-callback npm package is designed to convert standard Node.js style callback functions into a format that can be used with promises. This is particularly useful when working with older Node.js APIs or third-party libraries that do not return promises natively. By wrapping these functions with standard-as-callback, developers can work with them using promise chains or async/await syntax, which can lead to cleaner and more maintainable code.

What are standard-as-callback's main functionalities?

Converting callback to promise

This feature allows you to convert a standard Node.js callback-style function into a promise. In the code sample, the fs.readFile function, which normally takes a callback, is converted into a promise-returning function using standard-as-callback. This allows for the use of .then() and .catch() for handling the asynchronous operation.

const standardAsCallback = require('standard-as-callback');
const fs = require('fs');

const readFilePromise = standardAsCallback(fs.readFile);

readFilePromise('example.txt', 'utf8').then(content => {
  console.log(content);
}).catch(error => {
  console.error(error);
});

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Package last updated on 14 Mar 2021

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