Snippet: Parse CSV with JavaScript

A function to parse CSV contents with multiline support in JavaScript

// Copyright Robert Eisele 2016
function parseCSV(cont, sep = ',', quot = '"') {

    const ret = [];

    let field = "";
    let inStr = false;
    let row = [];

    for (var i = 0; i < cont.length; i++) {

        const c = cont[i];

        if (inStr) {

            if (c === quot) {
                inStr = false;
            } else {
                field += c;
            }

            if (i == cont.length - 1 && (row.length > 0 || field !== "")) {
                row.push(field.trim());
                field = "";
                ret.push(row);
                row = [];
            }

        } else if (c === quot) {
            inStr = true;
        } else if (c === sep) {
            row.push(field.trim());
            field = "";
        } else if (c === "\n" || c === "\r" || i == cont.length - 1) {
            if (row.length > 0 || field !== "") {
                row.push(field.trim());
                field = "";
                ret.push(row);
                row = [];
            }
        } else {
            field += c;
        }
    }
    return ret;
}

Or install it directly using NPM:

npm install @raw/parsecsv