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buffer-writer

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buffer-writer

a fast, efficient buffer writer

  • 2.0.0
  • latest
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  • npm
  • Socket score

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2.1M
decreased by-19.18%
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1
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What is buffer-writer?

The buffer-writer package is a Node.js module that provides a way to write values to a Buffer with automatic buffer management. It allows for writing various types of data, such as integers, strings, and floating-point numbers, in a binary format to a buffer. This can be particularly useful when dealing with binary protocols or when you need to serialize data for storage or network transmission.

What are buffer-writer's main functionalities?

Writing integers

This feature allows writing 8-bit, 16-bit, and 32-bit integers to a buffer. The 'BE' and 'LE' suffixes indicate whether the integer should be written in big-endian or little-endian format.

const BufferWriter = require('buffer-writer');
const writer = new BufferWriter();
writer.writeInt8(0x68);
writer.writeInt16BE(0x1234);
writer.writeInt32LE(0x12345678);
const buffer = writer.getBuffer();

Writing floating-point numbers

This feature allows writing 32-bit and 64-bit floating-point numbers to a buffer. Similar to integers, the 'BE' and 'LE' suffixes indicate the endianness.

const BufferWriter = require('buffer-writer');
const writer = new BufferWriter();
writer.writeFloatBE(3.14);
writer.writeDoubleLE(3.141592653589793);
const buffer = writer.getBuffer();

Writing strings

This feature allows writing strings to a buffer. It supports writing standard strings and null-terminated strings, which are commonly used in C-style string handling.

const BufferWriter = require('buffer-writer');
const writer = new BufferWriter();
writer.writeString('Hello, World!');
writer.writeStringZero('Null-terminated string.');
const buffer = writer.getBuffer();

Buffer management

This feature allows for managing the buffer by moving the write position. In this example, the 'rewind' method is used to move the write position back, allowing overwriting of previously written data.

const BufferWriter = require('buffer-writer');
const writer = new BufferWriter();
writer.writeUInt8(0xff);
writer.rewind(1);
writer.writeUInt8(0x7f);
const buffer = writer.getBuffer();

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Package last updated on 07 Nov 2018

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