INNER CODE UNIT · JavaScript

decodeBase64

r1cksec/cheatsheets · snippet/js/base64.js:10

function decodeBase64(base64Str)
{
    const binaryString = atob(base64Str);
    const len = binaryString.length;
    const bytes = new Uint8Array(len);

    for (let i = 0; i < len; i++)
    {
        bytes[i] = binaryString.charCodeAt(i);
    }

    return new TextDecoder().decode(bytes);
}

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