Package Exports

util.promisify
util.promisify/implementation
util.promisify/implementation.js
util.promisify/index.js
util.promisify/shim
util.promisify/shim.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (util.promisify) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

util.promisify

Polyfill for util.promisify in node versions < v8

node v8.0.0 added support for a built-in util.promisify: https://github.com/nodejs/node/pull/12442/

This package provides the built-in util.promisify in node v8.0.0 and later, and a replacement in other environments.

Usage

Direct

const promisify = require('util.promisify');
// Use `promisify` just like the built-in method on `util`

Shim

require('util.promisify/shim')();
// `util.promisify` is now defined
const util = require('util');
// Use `util.promisify`

Note: this package requires a native ES5 environment, and for Promise to be globally available. It will throw upon requiring it if these are not present.

Promisifying modules

If you want to promisify a whole module, like the fs module, you can use util.promisify-all.