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obuf

Byte buffer specialized for data in chunks with special cases for dropping bytes in the front, merging bytes in to various integer types and abandoning buffer without penalty for previous chunk merges.

    1.1.2latest
    GitHub
    npm

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decreased by-16.29%

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Package description

What is obuf?

The `obuf` npm package is designed for efficient binary data manipulation. It allows for operations such as appending, slicing, and transforming binary data in a buffer. This package is particularly useful for applications that require direct manipulation of binary data, such as networking applications, file I/O operations, and data serialization/deserialization tasks.

What are obuf's main functionalities?

Appending data

This feature demonstrates how to append data to the buffer. It includes appending both a UInt8 and a string to the buffer.

"use strict";\nconst OBuffer = require('obuf');\nlet buffer = new OBuffer();\nbuffer.writeUInt8(0x01);\nbuffer.writeString('Hello, World!');"

Slicing data

This feature shows how to slice a portion of the buffer. It creates a slice of the buffer from index 0 to 5.

"use strict";\nconst OBuffer = require('obuf');\nlet buffer = new OBuffer();\nbuffer.writeUInt8(0x01);\nbuffer.writeString('Hello, World!');\nlet slice = buffer.slice(0, 5);"

Transforming data

This feature illustrates how to transform the data in the buffer. It applies a transformation function to each byte in the buffer, in this case, XORing each byte with 0xff.

"use strict";\nconst OBuffer = require('obuf');\nlet buffer = new OBuffer();\nbuffer.writeUInt8(0x01);\nbuffer.transform(data => {\n  // Transform the data\n  return data.map(byte => byte ^ 0xff);\n});"

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Readme

Source

obuf - Offset buffer implementation.

Byte buffer specialized for data in chunks with special cases for dropping bytes in the front, merging bytes in to various integer types and abandoning buffer without penalty for previous chunk merges.

Used in spyd-transport, part of spdy support for http2.

This software is licensed under the MIT License.

By Fedor Indutny, 2015.

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Last updated on 10 Mar 2018

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