https://github.com/donmccurdy/hex2dec

Arbitrary precision decimal↔️hexadecimal converter.
https://github.com/donmccurdy/hex2dec

Last synced: 2 months ago
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Arbitrary precision decimal↔️hexadecimal converter.

• Host: GitHub
• URL: https://github.com/donmccurdy/hex2dec
• Owner: donmccurdy
• License: apache-2.0
• Created: 2016-07-09T23:47:46.000Z (almost 9 years ago)
• Default Branch: main
• Last Pushed: 2024-09-16T13:59:00.000Z (8 months ago)
• Last Synced: 2025-03-13T19:09:50.671Z (3 months ago)
• Language: JavaScript
• Size: 115 KB
• Stars: 27
• Watchers: 5
• Forks: 7
• Open Issues: 3
• Metadata Files:
  • Readme: README.md
  • Funding: .github/FUNDING.yml
  • License: LICENSE

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README

        
# hex2dec

[![Latest NPM release](https://img.shields.io/npm/v/hex2dec.svg)](https://www.npmjs.com/package/hex2dec)

[![npm bundle size](https://img.shields.io/bundlephobia/minzip/hex2dec)](https://bundlephobia.com/package/hex2dec)

[![License](https://img.shields.io/npm/l/hex2dec.svg)](https://github.com/donmccurdy/hex2dec/blob/master/LICENSE)

[![Build Status](https://github.com/donmccurdy/hex2dec/workflows/build/badge.svg?branch=master&event=push)](https://github.com/donmccurdy/hex2dec/actions?query=workflow%3Abuild)

Arbitrary precision decimal↔️hexadecimal converter, from a [blog post](http://www.danvk.org/hex2dec.html) by [Dan Vanderkam](https://github.com/danvk). Supports non-negative integer values.

## Usage

```

npm install --save hex2dec

```

```javascript

var converter = require('hex2dec');

var dec = converter.hexToDec('0xFA'); // 250

var hex = converter.decToHex('250'); // '0xfa'

var hexString = converter.decToHex('250', { prefix: false }); // 'fa'

```

## Why use hex2dec

`(250).toString(16) === 'fa'` and `250 === 0xFA` both work just fine, and will provide enough precision for most uses. For large (>64-bit) numbers, however, precision is lost. This utility provides a higher-precision alternative.

## License

This code may be used under the [Apache 2 license](https://github.com/donmccurdy/hex2dec/blob/master/LICENSE).