endianness

endianness

Copyright (c) 2017-2018 Rafael da Silva Rocha.
https://github.com/rochars/endianness

Swap endianness in byte arrays. The input buffer is modified in place.

• Use it everywhere, server and browser
• Use it with any byte offset
• Swap only parts of the buffer
• Compatible with IE8+

Install

npm install endianness

Use

Node

Require or import endianness from endianness:

import endianness from 'endianness';

// Swap endianness of one 64-bit value:
let bytes = [64, 9, 33, 251, 84, 68, 45, 24];
endianness(bytes, 8);

const endianness = require("endianness");

// Swap endianness of two 24-bit values:
let bytes = new Uint8Array(["00", "00", "80", "ff", "ff", "7f"]);
endianness(bytes, 3),

Browser

Use endianness.umd.js:

<script src="endianness.umd.js"></script>
<script>
    var bytes = [64, 9, 33, 251, 84, 68, 45, 24]; 
    endianness(bytes, 8);
    console.log(bytes);
</script>

Or get it from the jsDelivr CDN:

<script src="https://cdn.jsdelivr.net/npm/endianness"></script>

Or get it from unpkg:

<script src="https://unpkg.com/endianness"></script>

API

/**
 * Swap the byte ordering in a buffer. The buffer is modified in place.
 * @param {!Array<number|string>|!Uint8Array} bytes The bytes.
 * @param {number} offset The byte offset.
 * @param {number=} index The start index. Assumes 0.
 * @param {number=} end The end index. Assumes the buffer length.
 * @throws {Error} If the buffer length is not valid.
 */
function endianness(bytes, offset, index=0, end=bytes.length) {}

LICENSE

Copyright (c) 2017-2018 Rafael da Silva Rocha.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.