Remove all dots except the first one from a string

Question

Given a string

\'1.2.3.4.5\'

I would like to get this output

\'1.2345\'

(In case there are no dots in the

Answer 1

Here is another approach:

function process(input) {
    var n = 0;
    return input.replace(/\./g, function() { return n++ > 0 ? '' : '.'; });
}

But one could say that this is based on side effects and therefore not really elegant.