Module

std/node/buffer.ts>Buffer#readBigUInt64BE

Deno standard library
denoland/deno_std
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method Buffer.prototype.readBigUInt64BE
import { Buffer } from "https://dotland.deno.dev/std@0.177.0/node/buffer.ts";

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 'buffer';

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

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

Parameters

optional
offset: number

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

Returns

bigint