Uint8Array Tools

This library is licensed under MIT.

Usage

Note: fromHex and compare mimic the Buffer.from('ff', 'hex') and buf1.compare(buf2) API. Their behavior should be the same in the browser as well as in Node.

1import * as uint8arraytools from "uint8array-tools";
2uint8arraytools.fromHex("ff");
3// Uint8Array(1) [ 255 ]
4uint8arraytools.toHex(Uint8Array.from([0xff]));
5// 'ff'
6uint8arraytools.compare(Uint8Array.from([0xff]), Uint8Array.from([0x01]));
7// 1
8uint8arraytools.compare(Uint8Array.from([0xff]), Uint8Array.from([0xff]));
9// 0
10uint8arraytools.compare(Uint8Array.from([0x01]), Uint8Array.from([0xff]));
11// -1
12uint8arraytools.fromUtf8("tools");
13// Uint8Array(5) [ 116, 111, 111, 108, 115 ]
14uint8arraytools.toUtf8(Uint8Array.from([116, 111, 111, 108, 115]));
15// tools
16uint8arraytools.concat([Uint8Array.from([1]), Uint8Array.from([2])]);
17// Uint8Array(2) [ 1, 2 ]
18uint8arraytools.fromBase64("dG9vbHM=");
19// Uint8Array(3) [ 182, 138, 37 ]
20uint8arraytools.toBase64(Uint8Array.from([116, 111, 111, 108, 115]));
21// dG9vbHM=
22
23const uint8array = new Uint8Array(2);
24uint8arraytools.writeUInt16(uint8array, 0, 0xffff - 1, "LE");
25uint8array;
26// Uint8Array(2) [ 254, 255 ]
27uint8arraytools.readUInt16(uint8array, 0, "LE");
28// 65534