const csvToJSON = (csv) => {   
    const getcsvdata = (csv) => {
        const csvRegex = /,(?=(?:(?:[^"]*"){2})*[^"]*$)/;
        const trimQuotes = /^"|"$/g;
        csv = csv.split(csvRegex).map(
            h => h.trim().replace(trimquotes, '')
        );
        return csv;
    }
    let lines = csv.split('\n');
    let headers = getcsvdata(lines[0]);
    let result = [];
    lines.slice(1).forEach(line => {
        var item = {};
        let currentline = getcsvdata(line);
        headers.forEach((header, i) => {
            item[header] = currentline[i];
        })
        result.push(item);
    });  
    return result;
}

let csv = `Name, Age, City  
John, 21, New York
"Jane, Doe", 22, San Francisco
Jim, 23, Chicago
"Jill Chill", 24, "Tacoma, Seattle"`;

console.log(csvToJSON(csv));