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Module

std/node/_buffer.d.ts>Buffer#readBigUInt64BE

Deno standard library
denoland/deno_std
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The Standard Library has been moved to JSR. See the blog post for details.
method Buffer.prototype.readBigUInt64BE
import { Buffer } from "https://deno.land/std@0.135.0/node/_buffer.d.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

Returns

bigint