jQuery calculate sum of values in all text fields

Question

I have an order form with about 30 text fields that contain numerical values. I\'d like to calculate the sum of all those values on blur.

I know how to select all te

Answer 1

Similarly along the lines of these answers written as a plugin:

$.fn.sum = function () {
    var sum = 0;
    this.each(function () {
        sum += 1*($(this).val());
    });
    return sum;
};

For the record 1 * x is faster than Number(x) in Chrome