Reference error - denormalizedEncodings is not defined

[DcodeDesign]

denormalizedEncodings is not defined :

const supportedEncodingsDenormalized = (function() {
    denormalizedEncodings = []; <---
    for (const encoding of supportedEncodings) {
        denormalizedEncodings.push(
            encoding.toLocaleLowerCase(),
            encoding.toLocaleLowerCase().replace(/-/g, "")
        );
    }
    return denormalizedEncodings;
})();