core/hwe/ts/util/convertBytesLikeToArrayBuffer.ts

import { BytesLike } from "./BytesLike";

export function convertBytesLikeToArrayBuffer(data: BytesLike, encodeUTF8 = true): ArrayBuffer{
    if (data instanceof ArrayBuffer) {
        return data;
    }
    if (data instanceof Uint8Array) {
        return data.buffer;
    }
    if (typeof(data) === 'string'){
        if(encodeUTF8){
            return (new TextEncoder()).encode(data);
        }
        return new Uint8Array(data.split('').map(s=>s.codePointAt(0) as number));
    }
    return data.buffer;
}