How to convert a currency string to a double with jQuery or Javascript?

Question

I have a text box that will have a currency string in it that I then need to convert that string to a double to perform some operations on it.

\"$1,1

Answer 1

var parseCurrency = function (e) {
    if (typeof (e) === 'number') return e;
    if (typeof (e) === 'string') {
        var str = e.trim();
        var value = Number(e.replace(/[^0-9.-]+/g, ""));
        return str.startsWith('(') && str.endsWith(')') ? -value: value;
    }

    return e;
}