Javascript Regex: replacing the last dot for a comma

Question

I have the following code:

var x = \"100.007\"
x = String(parseFloat(x).toFixed(2));
return x
=> 100.01

This works awesomely just how I

Answer 1

You can use lastIndexOf to find the last occurence of ,. Then you can use slice to put the part before and after the , together with a . inbetween.