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writeDoubleBE

method Buffer.writeDoubleBE
Jump to headingBuffer.writeDoubleBE(
value: number,
offset?: number,
): number

Writes value to buf at the specified offset as big-endian. The value must be a JavaScript number. Behavior is undefined when value is anything other than a JavaScript number.

import { Buffer } from 'node:buffer';

const buf = Buffer.allocUnsafe(8);

buf.writeDoubleBE(123.456, 0);

console.log(buf);
// Prints: <Buffer 40 5e dd 2f 1a 9f be 77>

Parameters Jump to heading

Jump to headingvalue: number

Number to be written to buf.

optional
Jump to headingoffset: number = 0

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

Return Type Jump to heading

number

offset plus the number of bytes written.

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