Convert HTML data attribute name to JS dataset name in camel case

html_data_attrib_2_javascript_dataset.js

function data2prop( sDset ){  //  Convert HTML data attrib name to JS dataset name
    sDset = sDset.replace("data-", "").toLowerCase();
    let aDset = sDset.split(""), aDret = [], bUpper = false;
    aDset.forEach( (sVal, nIx) => {
        if( sVal == "-" ){
            bUpper = true;
        }else{
            aDret.push( ( bUpper ) ? sVal.toUpperCase() : sVal );
            bUpper = false;
        }
    });
    return aDret.join("");
}
// data-is-whatever will be converted to isWhatever
// So you could do e.dataset[ data2prop("data-is-whatever") ]
// I think this was originally written in COBOL, then transpiled to Advanced Revelation, before is was ported to Smalltalk.