Function Crc32

the CRC32 hash is quick to compute and used frequently in compression functions and their derivatives
you do not have to provide the bytes array in its entirety all at once, because you can continue off with the previous partial byte array's crc-hash using the second argument.

Example

const
	txtenc = new TextEncoder(),
	crc_a = Crc32(txtenc.encode("hello ")), // == 0xED81F9F6
	crc_b = Crc32(txtenc.encode("world"), crc_a), // == 0x0D4A1185
	crc_c = Crc32(txtenc.encode("hello world")) // == 0x0D4A1185
console.assert(crc_b === crc_c)
  • Crc32(bytes, crc?): number

  • Parameters

    • bytes: number[] | Uint8Array

      an array of bytes to compute the hash for. can be any kind of array, so long as all byte numbers conform to being unsigned integers that do not exceed the maximum value of 255 (8-bit max value)

    • Optionalcrc: number

      provide any previous crc hash that you'd like to continue from, or leave it undefined to begin from the standard value of 0xFFFFFFFF by default

    Returns number

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