How to check a string contains only digits and one occurrence of a decimal point?

Question

My idea is something like this but I dont know the correct code

if (mystring.matches(\"[0-9.]+\")){
  //do something here
}else{
  //do something here
}
<         


        

Answer 1

I create myself to solve exactly question's problem. I'll share you guys the regex:

^(\d)*(\.)?([0-9]{1})?$

Take a look at this Online Regex to see work properly

Refer documentation if you wish continue to custom the regex

Documentation