With a browser, how do I know which decimal separator does the operating system use?

Question

I\'m developing a web application.

I need to display some decimal data correctly so that it can be copied and pasted into a certain GUI application that

Answer 1

function getDecimalSeparator() {
    //fallback  
       var decSep = ".";

        try {
            // this works in FF, Chrome, IE, Safari and Opera
            var sep = parseFloat(3/2).toLocaleString().substring(1,2);
            if (sep === '.' || sep === ',') {
                decSep = sep;
            }
        } catch(e){}

        return decSep;
    }