@oazmi/build-tools
Version:
general deno build tool scripts which I practically use in all of my typescript repos
28 lines (27 loc) • 675 B
JavaScript
// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
// This module is browser compatible.
/**
* Concatenate an array of {@linkcode Uint8Array}s.
*
* @example
* ```ts
* import { concat } from "@std/bytes/concat";
*
* const a = new Uint8Array([0, 1, 2]);
* const b = new Uint8Array([3, 4, 5]);
* concat([a, b]); // Uint8Array(6) [ 0, 1, 2, 3, 4, 5 ]
* ```
*/
export function concat(buf) {
let length = 0;
for (const b of buf) {
length += b.length;
}
const output = new Uint8Array(length);
let index = 0;
for (const b of buf) {
output.set(b, index);
index += b.length;
}
return output;
}