A pure JavaScript and zero dependencies cyclic redundancy check (CRC) node module.
It supports crc8, crc16 and crc32.
npm install --save easy-crc
There are three functions available respectively named crc8(), crc16() and crc32(). These functions take three arguments.
The first argument is a string with the name of the desired algorithm (below the list), and the second is the data on which you want to calculate crc. Data can be a string or a buffer.
The third parameter is the CRC seed and is optional.
const { crc8, crc16, crc32 } = require('easy-crc');
// CRC8
let data = '12345';
let checksum = crc8('CRC-8', data);
console.log(checksum.toString(16));// "cb"
// CRC16
data = Buffer.from([0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37, 0x38, 0x39]);
checksum = crc16('CCITT-FALSE', data);
console.log(checksum.toString(16));// "7d61"
// CRC32
data = 'Hello!';
checksum = crc32('CRC-32', data);
console.log(checksum.toString(16));// "9d2acc56"
The follow algorithm names can be passed as first argument of respective crc8(), crc16() and crc32() methods.
npm test
FAQs
A pure JavaScript and zero dependencies CRC node module.
The npm package easy-crc receives a total of 1,617 weekly downloads. As such, easy-crc popularity was classified as popular.
We found that easy-crc demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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