kotlin-node/node.buffer/Buffer/readBigUInt64BE

readBigUInt64BE

fun readBigUInt64BE(offset: Number = definedExternally): BigInt(source)

Reads an unsigned, big-endian 64-bit integer from buf at the specifiedoffset.

This function is also available under the readBigUint64BE alias.

import { Buffer } from 'node:buffer';

const buf = Buffer.from([0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0xff]);

console.log(buf.readBigUInt64BE(0));
// Prints: 4294967295n
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Since

v12.0.0, v10.20.0

Parameters

offset=0 Number of bytes to skip before starting to read. Must satisfy: 0 <= offset <= buf.length - 8.