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@ragibkl/promisify-ts - 0.0.4 | npmpackage.info

@ragibkl/promisify-ts

Promisify utility function that preserves the original type annotation

0.0.4

JavaScript

4.67 kB

1.3

Installations

npm install @ragibkl/promisify-ts

Developer Guide

BETA

Typescript

Yes

Module System

CommonJS

Pull Requests

Open

0

Total

0

Closed

0

Issues

Open

0

Total

0

Closed

0

Releases

Release v0.0.4

v0.0.4

Updated on Nov 29, 2020

Release v0.0.3

v0.0.3

Updated on Nov 27, 2020

View All 2 releases

Languages

JavaScript

TypeScript

JavaScript (72.71%)

TypeScript (27.29%)

Developer

ragibkl

Download Statistics

Total Downloads

Last Day

Last Week

Last Month

Last Year

GitHub Statistics

21 Commits

2 Watchers

1 Branches

1 Contributors

Updated on Sep 03, 2022

Maintainers

View All 1 Contributors

Package Meta Information

Latest Version

0.0.4

Package Id

@ragibkl/promisify-ts@0.0.4

Unpacked Size

4.67 kB

Size

2.07 kB

File Count

Total Downloads

Cumulative downloads

Total Downloads

NaN

Last Day

NaN

Compared to previous day

Last Week

NaN

Compared to previous week

Last Month

NaN

Compared to previous month

Last Year

NaN

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Weekly Downloads

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Yearly Downloads

Dev Dependencies

@babel/core @babel/preset-env @babel/preset-typescript @typescript-eslint/eslint-plugin @typescript-eslint/parser babel-jest eslint eslint-config-airbnb-base eslint-config-prettier eslint-plugin-import jest np prettier ts-jest typescript

promisify-ts

Promisify utility function that preserves the original type annotation

Introduction

Node's util.promisify function transforms a callback-style function, into a function that returns a promise.

However, I've noticed that some transformation do not preserve the TypeScript type annotations of the original function.

This package is an attempt to create a similar promisify utility function, with proper typescript support.

Installation

Install using npm or yarn

1# install using npm
2npm install @ragibkl/promisify-ts

1# install using yarn
2yarn add @ragibkl/promisify-ts

Usage

1import promisify from '@ragibkl/promisify-ts';
2
3// Sample function that calculates division of a by b
4function divide(a: number, b: number, cb: (err: Error | null, data?: number) => void) {
5  setTimeout(() => {
6    try {
7      if (!b) {
8        throw new TypeError('Cannot divide by zero!');
9      }
10
11      cb(null, a / b);
12    } catch (err) {
13      cb(err);
14    }
15  }, 100);
16}
17
18const divideAsync = promisify(divide);
19// (a: number, b: number) => Promise<number>
20
21divideAsync(10, 2).then(console.log);
22// 5
23
24divideAsync(0, 0).then(console.log).catch(console.log);
25// TypeError: Cannot divide by zero!
26//     at Timeout._onTimeout (/home/ragib/Projects/ragibkl/promisify-ts/src/divide.ts:7:15)
27//     at listOnTimeout (internal/timers.js:549:17)
28//     at processTimers (internal/timers.js:492:7)

No vulnerabilities found.

10

Binary-Artifacts

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0

Maintained

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0

SAST

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0

Code-Review

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0

CII-Best-Practices

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0

Security-Policy

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0

License

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0

Fuzzing

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0

Branch-Protection

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0

Vulnerabilities

Determines if the project has open, known unfixed vulnerabilities.

Score

1.3

/10

Last Scanned on 2025-07-07

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