Only allow numbers and comma

Question

This current function prevents the user from typing any character but numbers. I would like to adjust it to allow commas and the spacebar as well. How would I adjust it.

numbersFunction(event: any): boolean {
    const charCode = (event.which) ? event.which : event.keyCode;
    if (charCode > 31 && (charCode < 48 || charCode > 57)) {
      return false;
    }
    return true;
  }

Answer 1

If your goal is to restrict to floating numbers only, you could use the Validators.pattern to enforce the correct pattern.

There is example of patterns in other questions, like this one.