CSV to JSON

csv2json.js

function csv2json(csv) {
    const headerEndIndex = csv.indexOf('\r\n');
    const bodyStartIndex = headerEndIndex + 2;
    const headers = csv.substring(0, headerEndIndex).split(';');
    const body = csv.substring(bodyStartIndex).split('\r\n').map(line => line.split(';'));

    const data = body.map(item => {
        const object = {};

        headers.forEach((header, index) => {
            object[header] = item[index];
        });

        return object;
    })
        .map(item => item.JSON)
        .map(item =>
            item?.replaceAll('""', '"')
                ?.replaceAll('"{', '{')
                ?.replaceAll('}"', '}')
        ).join(',');

    return JSON.parse(`[${data}]`);
}