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The adler-32 npm package is used for computing Adler-32 checksums. Adler-32 is a checksum algorithm which was designed to be a fast but not cryptographically secure alternative to CRC32. The algorithm is used in the zlib compression library. The adler-32 package provides functionality to calculate Adler-32 checksums for given inputs, which can be useful for error-checking or simple data integrity verification.
Calculate Adler-32 checksum from a string
This feature allows you to calculate the Adler-32 checksum of a given string. The 'str' method takes a string as input and returns the checksum as a number.
const adler32 = require('adler-32');
const checksum = adler32.str('Hello World');
console.log(checksum);
Calculate Adler-32 checksum from a buffer
This feature allows you to calculate the Adler-32 checksum of a given buffer. The 'buf' method takes a Node.js Buffer as input and returns the checksum as a number.
const adler32 = require('adler-32');
const buffer = Buffer.from('Hello World');
const checksum = adler32.buf(buffer);
console.log(checksum);
Calculate Adler-32 checksum and return result in hex format
This feature allows you to calculate the Adler-32 checksum of a given string and return the result in hexadecimal format. The second argument to the 'str' method is a boolean indicating whether the output should be in hex format.
const adler32 = require('adler-32');
const checksum = adler32.str('Hello World', true);
console.log(checksum);
The 'crc' npm package is used to calculate Cyclic Redundancy Check (CRC) of input data. It supports various CRC algorithms, including CRC32. It is similar to adler-32 in that it provides checksums for data integrity, but it offers a wider range of algorithms and is typically used when a more robust error-detection is required.
The 'crc32' package provides a simple and fast way to calculate CRC32 checksums for strings and buffers. It is similar to adler-32 in its simplicity and focus on CRC32, but it does not offer Adler-32 checksums.
The 'hash.js' package is a collection of hash functions implemented in pure JavaScript. It includes various cryptographic hash functions like SHA-1, SHA-256, and more. While it is more comprehensive and secure than adler-32, it is also more complex and may be slower due to the cryptographic nature of the algorithms.
FAQs
Pure-JS ADLER-32
The npm package adler-32 receives a total of 2,316,652 weekly downloads. As such, adler-32 popularity was classified as popular.
We found that adler-32 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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