如何在JavaScript中对Base36中的Uint8Array进行编码/解码？

function encodeBase36(uint8array) {
    let str = '';
    for (let i = 0; i < uint8array.length; i++) {
        str += String.fromCharCode(uint8array[i]);
    }
    return btoa(str).replace(/\+/g, '-').replace(/\//g, '_').replace(/=+$/, '');
}

// 示例
const uint8array = new Uint8Array([72, 101, 108, 108, 111]); // 对应ASCII字符串"Hello"
const base36encoded = encodeBase36(uint8array);
console.log(base36encoded); // 输出Base36编码后的字符串

function decodeBase36(base36str) {
    base36str = base36str.replace(/-/g, '+').replace(/_/g, '/');
    while (base36str.length % 4) {
        base36str += '=';
    }
    const str = atob(base36str);
    const uint8array = new Uint8Array(str.length);
    for (let i = 0; i < str.length; i++) {
        uint8array[i] = str.charCodeAt(i);
    }
    return uint8array;
}

// 示例
const base36encoded = 'SGVsbG8='; // Base36编码后的字符串
const uint8array = decodeBase36(base36encoded);
console.log(uint8array); // 输出解码后的Uint8Array