Language: JavaScript
Label: safe
CWE: CWE-829 \u2014 Inclusion of Functionality from Untrusted Control Sphere
The product imports, requires, or includes executable functionality (such as a library) from a source that is outside of the intended control sphere.

Code:
function tsd(num) {
    return Number(num).toFixed(2).replace(/\d(?=(\d{3})+\.)/g, '$&,');

}