How to check if a string has 3 or more decimal points using regex. 
I only am wanting to use a regex pattern to solve this issue.

```
var string1 = "1.23432 12.123.1231"; // true
var string2 = "1.23432 12123.1231"; // false

```

What I thought would work but doesn't:

```
let regx2 = RegExp(/.{3,}/g);
  if(regx2.test(string1)){
    output = false;
  }

```

Any help would be much appreciated.