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

You can try something like this:

str = str.replace(/\./,"#").replace(/\./g,"").replace(/#/,".");

But you have to be sure that the character # is not used in the string; or replace it accordingly.

Or this, without the above limitation:

str = str.replace(/^(.*?\.)(.*)$/, function($0, $1, $2) {
  return $1 + $2.replace(/\./g,"");
});